Free Computer Fundamentals MCQs with Answers

251. What is meant by a dedicated computer?

• A. Which is used by one person only
• B. Which is assigned one and only one task
• C. Which uses one kind of software
• D. Which is meant for application software

Explanation: A dedicated computer is designed for one specific task or limited purpose, such as controlling a washing machine or traffic signal. It does not mean that only one person can use it.

252. Modern Computer are very reliable but they are not___________?

• A. Fast
• B. Powerful
• C. Infallible
• D. Cheap

Explanation: Computers are highly reliable and fast, but they are not infallible because hardware failures, software bugs and incorrect input can still produce errors. Infallible means incapable of making a mistake.

253. Personnel who design, program, operate and maintain computer equipment refers to__________?

• A. Console-operator
• B. Programmer
• C. Peopleware
• D. System Analyst

Explanation: Peopleware refers to the people who design, program, operate and maintain computer systems. A programmer and a system analyst are specific roles within this broader group.

254. Who designed the first electronics computer - ENIAC?

• A. Van-Neumann
• B. Joseph M. Jacquard
• C. J. Presper Eckert and John W Mauchly
• D. All of above

Explanation: ENIAC was designed by J. Presper Eckert and John W. Mauchly. Von Neumann later contributed to the stored-program design concept, but he did not design ENIAC with the two named engineers.

255. In latest generation computers, the instructions are executed___________?

• A. Parallel only
• B. Sequentially only
• C. Both sequentially and parallel
• D. All of above

Explanation: Modern processors use sequential execution for ordered instructions and parallel execution through multiple cores, pipelines and other techniques. Therefore, both modes are used, not either one exclusively.

256. In analogue computer_____________?

• A. Input is first converted to digital form
• B. Input is never converted to digital form
• C. Output is displayed in digital form
• D. All of above

Explanation: An analogue computer works with continuously varying physical values, so its input is handled in analogue form rather than first being converted to digital form. Digital conversion is characteristic of digital or hybrid processing.

257. Microprocessors as switching devices are for ___________generation computers?

• A. First Generation
• B. Second Generation
• C. Third Generation
• D. Fourth Generation

Explanation: Fourth-generation computers introduced microprocessors, which placed the central processing unit on a single chip. Earlier generations used vacuum tubes, transistors or integrated circuits.

258. The computer size was very large in__________?

• A. First Generation
• B. Second Generation
• C. Third Generation
• D. Fourth Generation

Explanation: First-generation computers used bulky vacuum tubes and occupied very large rooms. Later generations became smaller through transistors, integrated circuits and microprocessors.

259. Second Generation computers were developed during___________?

• A. 1949 to 1955
• B. 1956 to 1965
• C. 1965 to 1970
• D. 1970 to 1990Company News

Explanation: Second-generation computers, based mainly on transistors, are commonly dated from 1956 to 1965. The first generation used vacuum tubes and ended around 1955.

260. Chief component of first generation computer was__________?

• A. Transistors
• B. Vacuum Tubes and Valves
• C. Integrated Circuits
• D. None of above

Explanation: First-generation computers used vacuum tubes or valves for electronic switching and processing. Transistors appeared in second-generation computers, while integrated circuits belong mainly to the third generation.