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Question 1 of 5
Which of the following was used in the first generation computers?
A Transistors
B Vacuum Tubes
C Integrated Circuits
D Microprocessors
Why: First generation computers (1940-1956) used **vacuum tubes** for processing and memory. These were large, generated excessive heat, consumed high power, and were unreliable due to frequent tube failures. Examples include ENIAC and UNIVAC. Transistors were introduced in the second generation, ICs in third, and microprocessors in fourth[1][5].
Question 2 of 5
The fourth generation computers were based on:
A Vacuum Tubes
B Transistors
C Integrated Circuits
D Microprocessors
Why: Fourth generation (1971-present) computers used **microprocessors** (e.g., Intel 4004), enabling small size, low cost, high reliability, and personal computing. This led to PCs, laptops, and modern computing. Earlier generations used vacuum tubes (1st), transistors (2nd), and ICs (3rd)[5].
Question 3 of 5
A term associated with generations of computers is a change in:
A Technology
B Programming Languages
C Memory Size
D Cost
Why: Computer **generations** refer to major changes in **technology** used for hardware components like processors and memory. First generation: vacuum tubes; second: transistors; third: integrated circuits; fourth: microprocessors; fifth: AI and quantum computing[1][5].
Question 4 of 5
Which was the first electronics digital programmable computing device?
A Analytical Engine
B Difference Engine
C Colossus
D ENIAC
Why: **Colossus** (1943-1944) was the first programmable electronic digital computer, used for code-breaking during WWII. Analytical and Difference Engines were mechanical (Babbage). ENIAC came later (1945)[1][6].
Question 5 of 5
Name the components used and give one example for each generation of computers.
Why: The answer covers all 5 generations with specific components, time periods, and real examples as expected in general exams. Structure follows introduction + numbered points + examples[1][5].