Free Computer Fundamentals MCQs with Answers

201. The CPU comprises of Control, Memory and_______________units?

• A. Microprocessor
• B. Arithmetic/Logic
• C. Output
• D. ROM

Explanation: The CPU is commonly described as containing the control unit, memory unit, and arithmetic/logic unit. The ALU performs calculations and logical comparisons, while the control unit directs operations.

202. Which of the following uses a handheld operating system?

• A. supercomputer
• B. personal computer
• C. Laptop
• D. PDA

Explanation: A PDA, or personal digital assistant, is a handheld computing device and therefore uses a handheld operating system. Supercomputers, PCs, and laptops are not normally classified as handheld devices.

203. C' in CPU denotes___________?

• A. Central
• B. Common
• C. Convenient
• D. Computer
• E. None of these

Explanation: In CPU, the letter C stands for Central, giving the term Central Processing Unit. The name describes the unit that centrally executes and controls computer instructions.

204. In which type of computer, data are represented as discrete signals?

• A. Analog computer
• B. Digital computer
• C. both
• D. Hybrid Computer

Explanation: Digital computers represent data using discrete values, most commonly binary 0s and 1s. Analog computers work with continuously varying signals, while hybrid computers combine both approaches.

205. In world today, most of the computers are_____________?

• A. Digital
• B. Hybrid
• C. Analog
• D. Complex

Explanation: Most computers in use today are digital because digital systems provide reliable storage, processing, and transmission using discrete binary values. Analog and hybrid computers serve more specialized purposes.

206. Computers, combine both measuring and counting, are called________________?

• A. Analog
• B. Digital
• C. Hybrid
• D. All of these

Explanation: Hybrid computers combine analog measurement with digital counting and processing. This allows them to handle both continuously varying quantities and discrete numerical data.

207. Note book, laptop,palm,hand-held computers are coming under the category of__________computer?

• A. Digital computer
• B. Mainframe computer
• C. Portable computer
• D. Hybrid computer

Explanation: Notebooks, laptops, palmtops, and handheld systems are classified as portable computers because they can be carried and operated away from a fixed desk. Digital and hybrid describe processing methods, not portability.

208. _________computer are of large size?

• A. Micro
• B. Mainframe
• C. Super
• D. Mini

Explanation: Mainframe computers are large, powerful systems designed to serve many users and process substantial workloads. Supercomputers are generally identified by extreme speed and scientific performance rather than this basic size classification.

209. ____________computer is a medium sized computer?

• A. Micro
• B. Mainframe
• C. Super
• D. Mini

Explanation: Mini computers are traditionally described as medium-sized systems, positioned between microcomputers and mainframes. A microcomputer is smaller, while a mainframe is larger.

210. ____________computer is small general purpose micro computer, but larger than portable computer?

• A. Hybrid
• B. Digital
• C. Desktop
• D. Laptop

Explanation: A desktop is a general-purpose microcomputer intended to remain on a desk and is typically larger and less portable than a laptop or other portable computer. Hybrid and digital describe types of processing rather than this form factor.