Quick recall · 248 cards
Short MCQ-style retrieval prompts. Tap a card to reveal the answer.
PYQ
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Which component is considered the "brain" of the computer?
B · B) CPU
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Which component is responsible for connecting all other components of a computer?
B · B) Motherboard
PYQ
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Which of the following is the main memory of computer?
D · D) RAM
PYQ
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Which component of a computer connects the processor to other hardware components?
A · A) System Bus
PYQ
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Which of the following is an input device?
C · C) Keyboard
PYQ
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Which component provides the power supply to the internal components of the computer?
C · C) Power Supply Unit (PSU)
PYQ
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Which of the following is the main printed circuit board in a computer?
C · C) Motherboard
PYQ
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Which of the following is an example of an input device?
C · Keyboard
PYQ
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Which input device is commonly used for navigating through graphical interfaces?
C · Mouse
PYQ
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Which device is used to convert physical documents into digital format?
C · Scanner
PYQ
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Which input device is commonly associated with voice recognition applications?
B · Microphone
PYQ
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Which input device is primarily used for gaming purposes?
C · Joystick
PYQ
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What type of device reads data from memory cards?
D · Card reader
PYQ
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Which device allows users to interact with a computer screen by touching it directly?
D · Touch screen
PYQ
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Which device is used to capture images and videos?
D · Digital camera
PYQ
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What is the main function of input devices?
C · Interact with users
PYQ
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These devices provide a means of communication between a computer and outer world. What are they called?
A · I/O devices
PYQ
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The I/O devices are sometimes called the peripheral devices because they surround the CPU and memory of the computer system.
A · True
PYQ
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Which device is used for video games, flight simulators, training simulators and for controlling industrial robots?
C · Joystick
PYQ
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Which are the input devices that enable direct data entry into a computer system from source documents?
A · Data Scanning devices
PYQ
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A projector is an ______ device.
A · Output
PYQ
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One is an example of an impact printer.
A · Daisy wheel printer
PYQ
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The device that brings information and displays it on the surface of an object or a wall is called ______
D · Projector
PYQ
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The following are all output devices except ___
B · Scanner
PYQ
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The dot-matrix printer is an example of ____
A · Impact printer
Dot-matrix printers are impact printers that create characters by pins striking an ink ribbon against paper, producing dots. Non-impact printers avoid physical contact. Thus, option A is correct.
PYQ
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The storage device that uses rigid, permanently installed magnetic disks to store data is:
D · Hard disk
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Which of the following is a low cost, thin flexible magnetic disk storage?
C · Floppy disk
PYQ
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A medium capacity removable disk storage system is:
D · Zip disk
PYQ
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What is the main purpose of storage devices?
B · To hold or save data temporarily or permanently
PYQ
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Which of the following is the correct location where the CPU is placed on the motherboard?
C · CPU socket
PYQ
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What does the motherboard form factor determine?
B · The physical dimensions and layout of components
PYQ
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Which of the following is NOT a common motherboard form factor?
D · Mega-ATX
PYQ
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What is the primary function of the chipset on a motherboard?
B · To control communication between components
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Which component on the motherboard holds the RAM modules?
B · RAM slots
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What is the primary purpose of PCIe slots on a motherboard?
B · To install expansion cards like graphics cards
PYQ
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Which of the following is a legacy motherboard form factor that is rarely used in modern computers?
B · AT
PYQ
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True or False: High-end PC motherboards typically contain microprocessor sockets compatible with chips from different CPU manufacturers.
B · False
PYQ
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Which of the following is non-volatile memory?
A. RAM
B. DRAM
C. Secondary Memory
D. SRAM
C · C. Secondary Memory
Non-volatile memory retains data without power. RAM, DRAM, and SRAM are volatile primary memories. Secondary memory (HDD, SSD) is non-volatile.
PYQ
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Which networking device operates at Layer 1 of the OSI model and repeats signals to all connected devices without separating broadcast domains?
B · B. Hub
PYQ · 2025
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What is a MAC address and what is its primary function in networking hardware?
B · B. Hardware identifier assigned to Network Interface Card (NIC)
PYQ
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Identify the common types of networking connectors used to connect hardware devices in a computer network.
C · C. USB, HDMI, VGA, Ethernet RJ-45
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Which part of the computer is known as the 'brain' that executes instructions?
A · Central Processing Unit (CPU)
The CPU is called the brain of the computer because it processes instructions and controls the operation of other components.
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What is the primary function of the CPU's Arithmetic Logic Unit (ALU)?
A · Perform arithmetic and logical operations
The ALU performs all arithmetic calculations and logical operations within the CPU.
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Which of the following best describes the role of the CPU's Control Unit (CU)?
A · Coordinates and controls the execution of instructions
The Control Unit directs the operation of the processor by fetching, decoding, and executing instructions.
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Which CPU architecture component is responsible for storing the results of operations temporarily?
A · Registers
Registers are small storage locations within the CPU used to hold data and instructions temporarily during processing.
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Which of the following is NOT a function of the CPU?
B · Controlling peripheral devices directly
The CPU controls peripheral devices indirectly through controllers and interfaces, not directly.
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Which component connects the CPU, memory, and all other hardware components together?
A · Motherboard
The motherboard acts as the main circuit board that connects and allows communication between all components.
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Which of the following is typically NOT found on a motherboard?
C · Power supply unit
The power supply unit is a separate component and is not located on the motherboard.
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What is the primary purpose of the chipset on a motherboard?
A · Manage data flow between processor, memory, and peripherals
The chipset controls communication between the CPU, memory, and peripheral devices.
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Which feature of a motherboard allows installation of additional hardware like graphics or sound cards?
A · Expansion slots
Expansion slots on the motherboard allow users to add extra cards to enhance computer functionality.
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Which type of memory is volatile and loses its data when power is turned off?
A · RAM
RAM is volatile memory used for temporary data storage during processing and loses data when power is off.
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Which memory type contains firmware and cannot be modified during normal operation?
A · ROM
ROM (Read-Only Memory) stores permanent instructions and data that cannot be changed during normal use.
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Which of the following best describes the difference between RAM and ROM?
A · RAM is volatile and writable, ROM is non-volatile and read-only
RAM loses data without power and can be written to, while ROM retains data without power and is read-only.
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Which memory type is used to speed up access to frequently used data by the CPU?
A · Cache memory
Cache memory is a small, fast memory located close to the CPU to store frequently accessed data and instructions.
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Which of the following is a non-volatile storage device that uses magnetic disks to store data?
A · Hard Disk Drive (HDD)
HDDs use magnetic disks to store data permanently even when power is off.
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Which storage device uses flash memory and has no moving parts, offering faster access times than HDDs?
A · Solid State Drive (SSD)
SSDs use flash memory technology and provide faster data access compared to traditional HDDs.
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Which of the following is an example of an optical storage device?
A · CD/DVD Drive
Optical drives use laser technology to read and write data on discs such as CDs and DVDs.
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Which storage device is most suitable for frequent read/write operations and fast data access in modern computers?
A · SSD
SSDs provide faster read/write speeds and better reliability for frequent data access compared to HDDs.
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Which input device is primarily used to convert handwritten text or drawings into digital form?
A · Scanner
A scanner captures images or text from physical documents and converts them into digital data.
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Which input device is used to input textual data into a computer?
A · Keyboard
The keyboard is the primary input device used for entering text and commands.
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Which input device is best suited for controlling movement in computer games?
A · Joystick
A joystick provides directional control and is commonly used in gaming applications.
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Which output device displays visual information generated by the computer?
A · Monitor
The monitor is the primary output device used to display images, videos, and graphical user interfaces.
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Which output device produces a hard copy of digital documents?
A · Printer
Printers produce physical copies of documents and images from digital files.
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Which output device converts digital audio signals into sound?
A · Speaker
Speakers output sound by converting digital audio signals into audible sound waves.
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What is the main function of the Power Supply Unit (PSU) in a computer?
A · Convert AC power from the outlet to DC power for components
The PSU converts alternating current (AC) from the mains to direct current (DC) required by computer components.
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Which of the following is a common voltage output provided by a computer's PSU?
D · Both 12V and 5V
PSUs typically provide multiple DC voltages such as 12V and 5V to power different components.
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Which expansion card is primarily used to improve a computer's graphical performance?
A · Graphics Card
A graphics card processes and renders images and videos to improve display quality and performance.
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Which port is commonly used to connect external USB devices to a computer?
A · USB port
USB ports are standard interfaces for connecting a wide range of external devices like keyboards, mice, and storage drives.
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Which expansion card would you install to add wireless network capability to a desktop computer?
A · Wireless Network Card
A wireless network card enables a computer to connect to Wi-Fi networks.
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Which part of the CPU is responsible for executing arithmetic and logical operations?
B · Arithmetic Logic Unit
The Arithmetic Logic Unit (ALU) performs all arithmetic and logical operations within the CPU.
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What is the primary function of the Control Unit in a CPU?
C · Direct the flow of data and instructions
The Control Unit directs the flow of data and instructions between the CPU and other components.
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Which of the following best describes the role of cache memory in a CPU?
B · Acts as a high-speed memory to reduce access time to frequently used data
Cache memory is a small, fast memory located inside the CPU that stores frequently accessed data to speed up processing.
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Which CPU component manages instruction decoding and execution sequencing?
B · Control Unit
The Control Unit decodes instructions and manages the sequence of execution within the CPU.
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Which component on the motherboard holds the CPU socket and memory slots?
C · Printed Circuit Board
The motherboard is a printed circuit board that contains the CPU socket, memory slots, and connectors for other components.
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Which chipset on the motherboard is primarily responsible for communication between the CPU and RAM?
B · Northbridge
The Northbridge chipset manages communication between the CPU, RAM, and graphics controller.
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Which of the following is NOT typically found on a motherboard?
B · Power supply unit
The power supply unit is a separate component and is not part of the motherboard.
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Which motherboard component stores the firmware that initializes hardware during booting?
A · BIOS chip
The BIOS chip contains firmware responsible for hardware initialization during the boot process.
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Which of the following is a volatile primary memory used for temporary data storage during program execution?
B · RAM
RAM (Random Access Memory) is volatile memory used to temporarily store data and instructions during program execution.
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Which type of memory is non-volatile and stores permanent instructions needed for booting the computer?
C · ROM
ROM (Read-Only Memory) is non-volatile and stores permanent instructions such as the bootloader.
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Which of the following statements about RAM and ROM is correct?
C · RAM is volatile; ROM is non-volatile
RAM is volatile memory that loses data when power is off, while ROM is non-volatile and retains data permanently.
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Which type of primary memory is typically used to store the BIOS firmware?
D · ROM
ROM stores BIOS firmware which is essential for booting the computer.
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Which of the following is an example of a secondary storage device?
B · Hard Disk Drive
Hard Disk Drive (HDD) is a secondary storage device used for permanent data storage.
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Which secondary storage device uses flash memory and has no moving parts?
B · Solid State Drive
Solid State Drives (SSD) use flash memory and have no moving parts, making them faster and more durable.
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Which of the following is NOT a characteristic of secondary storage devices?
C · Faster access than primary memory
Secondary storage devices are slower than primary memory (RAM) but provide permanent data storage.
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Which input device is primarily used to capture handwritten or drawn images directly into a computer?
D · Graphics Tablet
A graphics tablet allows users to draw or write by hand and input the data directly into the computer.
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Which input device converts physical documents into digital form?
A · Scanner
A scanner captures images or text from physical documents and converts them into digital data.
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Which input device is best suited for controlling movement in computer games?
A · Joystick
A joystick is an input device designed to control movement, commonly used in gaming.
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Which output device is used to produce a hard copy of documents and images?
B · Printer
A printer produces physical copies (hard copies) of digital documents and images.
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Which output device displays visual information to the user?
A · Monitor
A monitor displays visual output from the computer to the user.
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Which output device converts digital audio signals into sound?
C · Speaker
Speakers convert digital audio signals into audible sound output.
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What is the main function of the Power Supply Unit (PSU) in a computer?
B · Convert AC to regulated DC power
The PSU converts the alternating current (AC) from the mains supply into regulated direct current (DC) required by computer components.
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Which of the following voltage outputs is typically provided by a computer PSU?
B · +3.3V, +5V, +12V
Computer PSUs commonly provide +3.3V, +5V, and +12V DC outputs to power various components.
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Which expansion card is primarily used to improve a computer's graphical performance?
C · Graphics Card
A graphics card (GPU) enhances the computer's ability to render images and video.
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Which port is commonly used to connect external storage devices such as USB flash drives?
B · USB
USB (Universal Serial Bus) ports are widely used for connecting external storage and peripheral devices.
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In a system with a 32-bit CPU and a 64-bit data bus, how many memory accesses are required to read a 128-bit data block, and what is the minimum number of clock cycles needed if each memory access takes 2 cycles?
A · 2 accesses; 4 cycles
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What is the primary purpose of an input device in a computer system?
C · To enter data and instructions into the computer
Input devices are used to enter data and instructions into a computer system for processing.
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Which of the following best defines an input device?
B · A device that sends data from the user to the computer
An input device sends data and instructions from the user to the computer for processing.
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Which of the following is NOT an example of an input device?
C · Monitor
A monitor is an output device used to display information, not to input data.
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Which input device is primarily used to convert printed text into digital form?
B · Scanner
A scanner reads printed text or images and converts them into digital data for the computer.
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Which of the following input devices allows users to interact with a computer by detecting finger movement on a flat surface?
B · Touchpad
A touchpad detects finger movement on a flat surface to control the cursor on a laptop or similar device.
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How does an optical mouse detect movement on a surface?
B · By detecting changes in light reflected from the surface
An optical mouse uses a light source and sensor to detect changes in light patterns reflected from the surface to track movement.
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Which principle does a microphone use to convert sound into electrical signals?
C · Conversion of sound waves to electrical signals via diaphragm vibration
A microphone converts sound waves into electrical signals by using a diaphragm that vibrates with sound pressure.
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Refer to the diagram below showing the internal working of a keyboard switch. Which component is responsible for registering a key press?
B · Conductive traces
Conductive traces beneath the keys complete a circuit when pressed, registering the key press.
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Which input device is most suitable for drawing or graphic design applications due to its pressure sensitivity and precision?
B · Graphics tablet
A graphics tablet allows precise input with pressure sensitivity, making it ideal for drawing and design work.
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Which of the following is an advantage of using a touchscreen over a traditional mouse and keyboard?
C · Direct interaction with the display for intuitive use
Touchscreens allow direct interaction with the display, making them intuitive and easy to use, especially for mobile and kiosk devices.
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Which of the following best defines an input device in a computer system?
C · A device used to enter data and instructions into a computer
An input device is hardware used to provide data and control signals to a computer, enabling user interaction.
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What is the primary purpose of input devices in computing?
B · To convert user data into a form understandable by the computer
Input devices convert user actions or data into signals that the computer can process.
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Which of the following is NOT typically classified as an input device?
B · Monitor
A monitor is an output device used to display information, not to input data.
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Which type of input device is primarily used to capture handwritten or drawn input directly into a computer?
B · Graphics Tablet
A graphics tablet allows users to draw or write with a stylus, capturing input as digital data.
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Which input device uses light sensors to read printed codes and convert them into digital data?
B · Barcode Reader
Barcode readers use optical sensors to scan barcodes and translate them into digital information.
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How does a capacitive touchscreen detect user input?
B · By detecting changes in electrical charge caused by the touch
Capacitive touchscreens detect input by sensing the change in electrical charge when a finger touches the screen.
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Which principle does an optical mouse use to detect movement?
C · Laser or LED light reflection and sensor detection
An optical mouse uses a light source (LED or laser) and a sensor to detect movement by tracking reflected light patterns.
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Refer to the diagram below showing the internal working of a microphone. Which component converts sound waves into electrical signals?
C · Transducer
The transducer in a microphone converts sound waves into electrical signals for processing.
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Which input device is most suitable for entering biometric data for security purposes?
A · Fingerprint Scanner
Fingerprint scanners capture unique biometric data for authentication and security.
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In which scenario is a joystick most commonly used as an input device?
B · Playing video games requiring directional control
Joysticks provide directional input and are widely used in gaming for controlling movement.
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Which recent technological advancement has improved the accuracy and responsiveness of input devices like touchscreens?
B · Capacitive sensing technology
Capacitive sensing technology allows touchscreens to detect multiple touch points with high accuracy and responsiveness.
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Which of the following input devices represents a significant technological advancement by enabling gesture-based control without physical contact?
B · Motion Sensor (e.g., Leap Motion Controller)
Motion sensors like the Leap Motion Controller allow users to interact with computers through hand gestures without touching any device.
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Which of the following best defines an output device in computer hardware?
C · A device that displays or presents data from the computer
Output devices are hardware components that receive data from a computer and present it in a usable form such as visual display, sound, or printed output.
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What is the primary purpose of output devices in a computer system?
C · To convert processed data into human-readable form
Output devices convert processed data into formats that users can understand, such as text, images, or sound.
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Which of the following statements about output devices is correct?
B · They convert digital data into a form understandable by humans
Output devices convert digital data into human-understandable forms such as images, text, or sound.
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Which of the following is NOT an example of an output device?
C · Keyboard
A keyboard is an input device used to enter data into a computer, not an output device.
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Which type of output device is primarily used to produce hard copies of documents?
B · Printer
Printers produce physical, hard copies of documents or images on paper.
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Which output device uses pixels to display images and text on a screen?
B · Monitor
Monitors display images and text using pixels arranged in a grid.
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Which of the following output devices is best suited for producing large-scale engineering drawings?
B · Plotter
Plotters are specialized output devices used to produce large, high-precision drawings like engineering blueprints.
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Which of the following is a characteristic feature of OLED monitors compared to LCD monitors?
B · Better contrast and color accuracy
OLED monitors provide better contrast ratios and more accurate colors compared to traditional LCD monitors.
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How does an inkjet printer produce images on paper?
A · By spraying tiny droplets of ink onto paper
Inkjet printers work by spraying tiny droplets of ink directly onto the paper to form images or text.
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Which output device converts digital signals into sound waves for audio output?
B · Speaker
Speakers convert digital audio signals into sound waves that can be heard by humans.
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Which of the following output devices uses laser technology to produce high-quality prints quickly?
B · Laser Printer
Laser printers use laser beams to produce high-quality and fast prints by transferring toner onto paper.
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In which scenario would a projector be preferred over a monitor as an output device?
B · For displaying presentations to a large audience
Projectors are used to display images or presentations on large screens for audiences, unlike monitors which are for individual use.
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Which output device is most suitable for producing tactile feedback for visually impaired users?
A · Braille Printer
Braille printers produce tactile output in Braille format, enabling visually impaired users to read printed material by touch.
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Which of the following is a key difference between LCD and LED monitors?
B · LED monitors have better energy efficiency and brightness than LCD monitors
LED monitors are a type of LCD monitor that use LED backlighting, offering better energy efficiency and brightness compared to traditional LCDs.
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Which output device would you choose for a cost-effective solution to produce multi-page text documents quickly?
B · Laser Printer
Laser printers are cost-effective and fast for producing multi-page text documents compared to inkjet printers.
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Which of the following emerging output devices provides a three-dimensional holographic display without the need for special glasses?
B · 3D Holographic Display
3D holographic displays are emerging output devices that project 3D images in space visible without glasses.
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Which of the following best defines an output device in a computer system?
C · A device that displays or presents data from the computer to the user
Output devices are hardware components that receive data from a computer and present it to the user in a readable or perceivable form.
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What is the primary purpose of output devices in a computer system?
C · To convert processed data into a human-readable form
Output devices convert the processed data into forms such as text, images, sound, or physical copies that users can understand.
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Which of the following statements about output devices is TRUE?
B · Output devices convert digital signals into human-perceivable forms
Output devices translate digital data into forms such as images, sounds, or printed text that humans can perceive.
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Which of the following is NOT considered an output device?
C · Keyboard
A keyboard is an input device used to enter data into a computer, not to output data.
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Which output device is primarily used to produce hard copies of documents?
B · Printer
Printers produce physical copies (hard copies) of digital documents or images.
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Which of the following output devices is best suited for displaying high-resolution images and videos?
B · LCD monitor
LCD monitors are designed to display high-resolution images and videos clearly.
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Which output device converts digital audio signals into sound waves?
B · Speaker
Speakers convert digital audio signals into audible sound waves.
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Which of the following output devices is considered specialized and primarily used for large-scale technical drawings?
B · Plotter
Plotters are specialized output devices used to produce large-scale and precise technical drawings.
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Which characteristic is most important for a monitor used in graphic design work?
B · High resolution and color accuracy
Graphic design requires monitors with high resolution and accurate color reproduction to ensure precise work.
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Which of the following is a key functional difference between an inkjet printer and a laser printer?
B · Laser printers are generally faster and better for high volume printing
Laser printers use toner and are generally faster and more efficient for high volume printing compared to inkjet printers.
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Which output device characteristic is crucial for ensuring accessibility for visually impaired users?
B · Braille display or reader
Braille displays convert text into tactile braille characters, enabling visually impaired users to read output.
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Which of the following output devices can also function as an input device, blurring the traditional output role?
A · Touchscreen monitor
Touchscreen monitors display output and also accept input through touch, combining input and output functions.
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In which scenario would a projector be the most appropriate output device to use?
B · Displaying a presentation to a large audience
Projectors are used to display images or presentations on large screens or surfaces, suitable for large audiences.
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Which output device would be most suitable for producing tactile feedback for users in a virtual reality environment?
B · Haptic feedback device
Haptic feedback devices provide tactile sensations and vibrations to simulate touch in virtual environments.
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Which of the following output devices is most affected by recent technological advances in OLED and 4K display technology?
B · Monitors
Monitors have seen significant improvements with OLED and 4K technologies, enhancing display quality and color accuracy.
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Which recent technological advancement has improved the speed and quality of printing output devices?
B · Development of laser printing and 3D printing
Laser printing technology increased printing speed and quality, while 3D printing introduced new output capabilities beyond traditional printing.
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What is the primary purpose of a storage device in a computer system?
C · To store data and programs permanently or temporarily
Storage devices are used to store data and programs either permanently or temporarily for future use.
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Which of the following best defines a storage device?
B · A device that stores data and instructions for future use
Storage devices hold data and instructions so that they can be accessed when needed.
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How do storage devices differ from memory devices in a computer system?
B · Storage devices hold data permanently; memory devices hold data temporarily
Memory devices (like RAM) hold data temporarily and are volatile, whereas storage devices hold data permanently or semi-permanently.
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Which of the following is a primary storage device?
B · Random Access Memory (RAM)
Primary storage refers to memory directly accessible by the CPU, such as RAM.
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Which of the following is an example of secondary storage?
C · Solid State Drive (SSD)
Secondary storage devices store data permanently and include SSDs, HDDs, optical disks, etc.
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Which statement correctly differentiates primary and secondary storage devices?
C · Primary storage is directly accessible by the CPU; secondary storage is not
Primary storage like RAM is directly accessible by the CPU, while secondary storage requires I/O operations.
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Which of the following is NOT a characteristic of primary storage devices?
C · Large storage capacity
Primary storage devices typically have limited capacity compared to secondary storage devices.
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Which magnetic storage device uses spinning platters to store data magnetically?
B · Hard Disk Drive (HDD)
HDDs use spinning magnetic platters to store data magnetically.
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Which of the following is a disadvantage of floppy disks compared to modern HDDs?
B · Slower data access speed
Floppy disks have much slower data access speeds compared to HDDs.
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Which magnetic storage device stores data on a flexible magnetic disk and was widely used in the past for data transfer?
B · Floppy Disk
Floppy disks are flexible magnetic disks used historically for data storage and transfer.
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Which of the following is a technical limitation of magnetic storage devices like HDDs?
B · They are more prone to mechanical failure due to moving parts
HDDs have moving parts which make them prone to mechanical failure.
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Which optical storage device can store the largest amount of data?
C · Blu-ray
Blu-ray discs have a larger storage capacity than CDs and DVDs.
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Which optical storage device uses a blue-violet laser to read and write data, allowing higher density storage?
C · Blu-ray
Blu-ray uses a blue-violet laser which has a shorter wavelength, enabling higher data density.
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Which of the following is NOT an advantage of optical storage devices?
C · High data transfer speed compared to SSDs
Optical devices have slower data transfer speeds compared to SSDs.
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Which optical storage device is commonly used for high-definition video storage and playback?
C · Blu-ray
Blu-ray discs are designed to store high-definition video content.
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Which of the following is a solid-state storage device?
B · USB Flash Drive
USB flash drives use solid-state memory with no moving parts.
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Which characteristic distinguishes SSDs from HDDs?
B · SSDs have no moving parts; HDDs have mechanical moving parts
SSDs use flash memory with no moving parts, making them faster and more durable than HDDs.
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Which of the following is NOT a typical use of USB flash drives?
B · Permanent archival storage
USB flash drives are not ideal for permanent archival storage due to limited write cycles and durability compared to other media.
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Which solid-state storage device is commonly used in smartphones and cameras for expandable storage?
B · Memory Card
Memory cards such as SD cards are used for expandable storage in portable devices.
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Which storage device characteristic describes how quickly data can be read or written?
C · Speed
Speed refers to the rate at which data can be accessed or transferred.
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Which storage device characteristic indicates whether data is lost when power is turned off?
B · Volatility
Volatility refers to whether data is retained without power; volatile memory loses data when powered off.
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Which storage device is most suitable for high-speed data access and portability?
C · USB Flash Drive
USB flash drives offer fast access speeds and are highly portable.
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Which interface standard is commonly used for connecting internal hard drives to a computer motherboard?
B · SATA
SATA (Serial ATA) is the common interface for connecting internal HDDs and SSDs to the motherboard.
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Which storage interface provides the fastest data transfer speeds among the following?
C · NVMe over PCIe
NVMe over PCIe provides significantly faster data transfer speeds compared to SATA and USB interfaces.
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Which interface is typically used to connect external storage devices like USB flash drives and external HDDs?
B · USB
USB is the standard interface for connecting most external storage devices.
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Which storage device is most suitable for archiving large volumes of data that are infrequently accessed?
B · Magnetic Tape
Magnetic tape is cost-effective for large-scale archival storage but has slower access times.
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Which storage device would be best for installing an operating system to achieve fast boot times?
B · SSD
SSDs provide fast read/write speeds, improving boot times significantly.
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For transferring files between two computers quickly and portably, which storage device is most appropriate?
B · USB Flash Drive
USB flash drives are portable and provide fast data transfer, ideal for file transfer between computers.
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Which of the following is an example of a primary storage device?
B · Random Access Memory (RAM)
Primary storage refers to memory directly accessible by the CPU, such as RAM. HDD, optical discs, and flash drives are secondary or tertiary storage.
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Which storage device is typically used for long-term archival storage due to its low cost and durability?
A · Magnetic Tape
Magnetic tape is used for long-term archival storage because it is inexpensive and durable, though slower than SSD or RAM.
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Which of the following is NOT a type of secondary storage device?
C · Cache Memory
Cache memory is a type of primary storage, not secondary storage. SSD, optical discs, and HDD are secondary storage devices.
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Which of the following characteristics distinguishes volatile storage from non-volatile storage?
A · Data is retained without power
Volatile storage loses data when power is off, whereas non-volatile storage retains data without power.
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Which storage device characteristic primarily affects how quickly data can be read or written?
C · Access speed
Access speed determines how fast data can be read from or written to a storage device.
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Which of the following is a disadvantage of magnetic storage devices compared to solid-state drives?
B · Slower access speed
Magnetic storage devices generally have slower access speeds than solid-state drives.
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Which of the following storage technologies uses laser light to read and write data?
B · Optical Storage
Optical storage devices such as CDs and DVDs use laser light to read and write data.
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Which storage technology is based on NAND flash memory cells?
B · Solid State Drive
Solid State Drives (SSD) use NAND flash memory cells for storage.
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Which storage technology combines magnetic and optical methods to store data?
A · Magneto-Optical Storage
Magneto-optical storage uses a combination of magnetic and optical technologies to read and write data.
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If a storage device has a capacity of 2 TB, how many gigabytes (GB) does it approximately hold? (1 TB = 1024 GB)
A · 2048 GB
1 TB equals 1024 GB, so 2 TB equals 2 × 1024 = 2048 GB.
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Which unit is typically used to measure the speed of data transfer in storage devices?
B · Bytes per second (Bps)
Data transfer speed is usually measured in bytes per second (Bps) or multiples like MBps or GBps.
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A storage device has a capacity of 500 GB and a transfer rate of 150 MB/s. Approximately how long will it take to fill the device completely at this speed? (1 GB = 1024 MB)
A · ~57 minutes
Total data = 500 × 1024 = 512000 MB. Time = 512000 MB ÷ 150 MB/s ≈ 3413 seconds ≈ 57 minutes.
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Which of the following factors does NOT directly affect the speed of a storage device?
C · Storage capacity
Storage capacity affects how much data can be stored but does not directly affect speed.
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Which performance metric indicates the average time taken by a hard disk to position the read/write head over the correct track?
A · Seek Time
Seek time is the average time to move the read/write head to the desired track on a disk.
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Which of the following storage devices generally has the lowest latency?
B · Solid State Drive (SSD)
SSD has no moving parts and thus offers the lowest latency compared to HDD, optical discs, and magnetic tape.
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Which metric best describes the number of input/output operations a storage device can perform per second?
A · IOPS
IOPS (Input/Output Operations Per Second) measures how many operations a device can perform per second.
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Which storage device is most suitable for use in portable devices requiring fast access and low power consumption?
B · Solid State Drive (SSD)
SSD is preferred in portable devices due to fast access speeds, durability, and low power consumption.
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In which scenario is magnetic tape storage most commonly used?
B · Long-term data backup
Magnetic tape is mainly used for long-term data backup due to its cost-effectiveness and durability.
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Which storage device is preferred for high-performance servers requiring rapid data access and reliability?
B · Solid State Drive (SSD)
SSDs are preferred in high-performance servers for their speed and reliability.
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Which of the following is an advantage of solid-state drives over hard disk drives?
C · Faster data access speed
SSDs provide faster data access speeds compared to HDDs, though they are generally more expensive per GB.
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What is a major limitation of optical storage devices compared to magnetic and solid-state storage?
C · Slow data transfer rates
Optical storage devices generally have slower data transfer rates compared to magnetic and solid-state storage.
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What is the primary function of a motherboard in a computer system?
B · To connect and allow communication between all hardware components
The motherboard acts as the main circuit board that connects all hardware components and allows them to communicate with each other.
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Which of the following best defines a motherboard?
B · A circuit board that houses the CPU, memory, and connectors for other peripherals
A motherboard is the main printed circuit board that holds the CPU, memory, and connectors for other peripherals.
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Which slot on the motherboard is primarily used to install a graphics card?
A · PCIe x16 slot
The PCIe x16 slot is designed to accommodate high-bandwidth devices like graphics cards.
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Which component on the motherboard is responsible for regulating the voltage supplied to the CPU?
A · VRM (Voltage Regulator Module)
The VRM regulates and supplies the correct voltage to the CPU to ensure stable operation.
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Which of the following is NOT a common slot or connector found on a motherboard?
D · Optical drive tray
An optical drive tray is part of the optical drive hardware, not a slot or connector on the motherboard.
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Which chipset component on a motherboard primarily manages communication between the CPU and high-speed devices like RAM and graphics cards?
A · Northbridge
The Northbridge chipset manages communication between the CPU, RAM, and graphics cards, handling high-speed data transfers.
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How does the Southbridge chipset differ from the Northbridge on a motherboard?
B · Southbridge manages input/output functions; Northbridge manages CPU and memory communication
The Southbridge manages lower-speed peripheral interfaces like USB, SATA, and audio, while the Northbridge handles communication between CPU, RAM, and graphics.
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Which of the following best describes the role of a chipset on a motherboard?
B · It controls data flow between the processor, memory, and peripherals
The chipset controls data flow between the CPU, memory, and peripheral devices, coordinating communication on the motherboard.
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Which motherboard form factor is the smallest and commonly used in compact or embedded systems?
C · Mini-ITX
Mini-ITX is a small form factor designed for compact systems and embedded applications.
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What is the main advantage of the ATX motherboard form factor compared to Micro-ATX?
B · More expansion slots and better cooling options
ATX motherboards are larger and provide more expansion slots and better airflow for cooling compared to Micro-ATX.
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Which of the following ports on a motherboard is typically used for connecting external USB devices?
C · USB port
USB ports on the motherboard allow connection of external devices like keyboards, mice, and storage devices.
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Which expansion interface provides the highest data transfer rate for modern graphics cards on a motherboard?
B · PCIe x16
PCIe x16 slots provide the highest bandwidth and are used primarily for graphics cards.
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Which component on the motherboard converts the power supply voltage to the levels required by the CPU and other components?
A · VRM (Voltage Regulator Module)
The VRM converts and regulates the voltage from the power supply to the appropriate levels needed by the CPU and other components.
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What is the primary function of a processor in a computer system?
B · To execute instructions and process data
The processor, also known as the CPU, executes instructions and processes data, acting as the brain of the computer.
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Which of the following best defines a processor?
B · A hardware component that executes instructions
A processor is a hardware component responsible for executing instructions and processing data.
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Which statement correctly describes the role of a processor?
C · It executes program instructions and performs calculations
The processor executes program instructions and performs arithmetic and logical calculations.
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Which of the following is NOT a primary component of processor architecture?
D · Hard Disk Drive (HDD)
Hard Disk Drive is a storage device and not part of the processor architecture, which mainly includes ALU, CU, and registers.
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Refer to the diagram below showing the basic processor architecture. Which component is responsible for decoding instructions?
B · Control Unit (CU)
The Control Unit (CU) decodes instructions and directs the operation of the processor.
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Which register temporarily holds data being processed by the ALU?
C · Accumulator
The Accumulator register temporarily holds data and intermediate results for the ALU during processing.
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Which part of the processor is responsible for performing arithmetic and logical operations?
B · Arithmetic Logic Unit
The Arithmetic Logic Unit (ALU) performs all arithmetic and logical operations within the processor.
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Which of the following is a characteristic of CISC processors compared to RISC processors?
B · Complex instructions that can execute multiple low-level operations
CISC processors have complex instructions that can perform multiple low-level operations in a single instruction.
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Which processor type is designed to execute a small set of simple instructions very quickly?
B · RISC
RISC (Reduced Instruction Set Computer) processors use a small set of simple instructions optimized for fast execution.
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What is the main advantage of multi-core processors over single-core processors?
C · Ability to perform multiple tasks simultaneously
Multi-core processors can execute multiple tasks or threads simultaneously by distributing workload across cores.
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Refer to the diagram below comparing CISC and RISC instruction sets. Which statement is true based on the diagram?
C · RISC instructions are simpler and execute faster
RISC instructions are simpler and designed to execute faster, as shown in the diagram's instruction complexity and execution time comparison.
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Which metric measures the number of instructions a processor can execute per clock cycle?
B · Instructions Per Cycle (IPC)
Instructions Per Cycle (IPC) measures how many instructions a processor executes in one clock cycle.
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Which of the following directly affects the processor's clock speed?
C · Frequency of the oscillator circuit
The clock speed is determined by the frequency of the oscillator circuit that generates timing pulses.
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Which cache level is typically the fastest and located closest to the processor cores?
A · L1 Cache
L1 cache is the smallest, fastest cache located closest to the processor cores for quick data access.
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Refer to the performance comparison chart below showing clock speed and IPC of two processors. Which processor has better overall performance?
B · Processor B: 2.5 GHz, IPC 2.0
Overall performance depends on both clock speed and IPC. Processor B has higher IPC compensating for lower clock speed, resulting in better performance.
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Which of the following best describes the instruction cycle in a processor?
A · Fetch, Decode, Execute, Store
The instruction cycle consists of fetching the instruction, decoding it, executing it, and storing the result if necessary.
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Refer to the instruction cycle flowchart below. Which step immediately follows 'Decode Instruction'?
D · Fetch Operands
After decoding, the processor fetches operands needed for execution.
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Which register holds the address of the next instruction to be executed in the instruction cycle?
A · Program Counter (PC)
The Program Counter holds the address of the next instruction to be fetched and executed.
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Which of these steps is NOT part of the instruction execution cycle?
C · Compile
Compilation is a software process done before execution; it is not part of the processor's instruction cycle.
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Which generation of processors introduced the use of integrated circuits?
C · Third Generation
Third-generation processors used integrated circuits, improving speed and reliability over earlier transistor-based designs.
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Which of the following is a key feature of fourth-generation processors?
D · Use of microprocessors
Fourth-generation processors introduced microprocessors, integrating the CPU on a single chip.
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Refer to the timeline diagram below showing processor evolution. Which generation corresponds to the introduction of multi-core processors?
D · Fifth Generation
Multi-core processors became common in the fifth generation, improving parallel processing capabilities.
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Which of the following is a common method used for heat management in processors?
B · Using heat sinks and fans
Heat sinks and fans are commonly used to dissipate heat generated by processors to prevent overheating.
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Which cooling technique uses liquid to transfer heat away from the processor?
B · Liquid cooling
Liquid cooling uses a coolant to absorb and transfer heat away from the processor more efficiently than air cooling.
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Refer to the diagram below showing a processor heat sink and fan assembly. What is the primary function of the fan?
B · To dissipate heat by increasing airflow
The fan increases airflow over the heat sink to dissipate heat away from the processor effectively.
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Which of the following is NOT a performance metric used to evaluate processors?
D · Hard Drive Capacity
Hard drive capacity is a storage metric and unrelated to processor performance evaluation.
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Which of the following processor types typically consumes less power and generates less heat?
B · RISC processors
RISC processors have simpler instructions and typically consume less power and generate less heat than CISC processors.
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Which register is used to hold the instruction currently being executed by the processor?
B · Instruction Register (IR)
The Instruction Register holds the instruction currently being decoded and executed by the processor.
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Which of the following best describes the relationship between clock speed and processor performance?
C · Higher clock speed generally improves performance but depends on other factors like IPC
While higher clock speed can improve performance, other factors like Instructions Per Cycle (IPC) and architecture also affect overall performance.
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Which of the following processor generations is characterized by the use of vacuum tubes?
A · First Generation
First-generation processors used vacuum tubes before the invention of transistors.
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Which cooling method relies on natural convection without any moving parts?
C · Passive cooling
Passive cooling dissipates heat through natural convection and radiation without fans or pumps.
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Which of the following best explains the role of registers in a processor?
B · To temporarily hold data and instructions during processing
Registers are small, fast storage locations inside the CPU used to hold data and instructions temporarily during processing.
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Which of the following best describes the function of the Control Unit (CU)?
C · Manage and direct the execution of instructions
The Control Unit manages and controls the sequence of operations in the processor by directing data flow and instruction execution.
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Which of the following best explains why multi-core processors improve performance?
B · They allow parallel execution of multiple instructions
Multi-core processors can execute multiple instructions simultaneously by distributing tasks across cores, improving overall performance.
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Which of the following is NOT a typical characteristic of RISC processors?
C · Complex addressing modes
RISC processors typically avoid complex addressing modes to keep instructions simple and fast.
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Which of the following best describes the relationship between cache size and processor performance?
B · Larger cache size can improve performance by reducing memory access time
A larger cache stores more data closer to the processor, reducing the time needed to access frequently used data and improving performance.
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Which of the following best explains thermal throttling in processors?
B · Reducing clock speed to prevent overheating
Thermal throttling reduces the processor's clock speed automatically to lower temperature and prevent damage from overheating.
