1. The speed of supercomputers is measured in:
- bps only
- DPI
- RPM
- FLOPS
Answer: D) FLOPS
Explanation: FLOPS = floating-point operations per second.
MCQs / Computer Science / Types of Computers and Basic Operations
Types of Computers and Basic Operations MCQs — Computer Science
42 multiple-choice questions on Types of Computers and Basic Operations from Computer Science, each with the correct answer and, where available, a teacher's explanation. Read through them to revise the chapter, then practise the same questions one by one to test yourself.
2. Weather forecasting and nuclear research mainly use:
- tablets
- microcomputers
- minicomputers
- supercomputers
Answer: D) supercomputers
Explanation: These tasks need enormous calculation power.
3. A car speedometer with a needle is an example of a(n):
- hybrid computer
- analog device
- supercomputer
- digital computer
Answer: B) analog device
Explanation: The needle continuously shows speed.
4. The five basic operations of a computer are input, storage, processing, output and:
- networking
- scanning
- printing
- control
Answer: D) control
Explanation: Control directs how and when other operations happen.
5. A powerful single-user microcomputer used for engineering design and graphics is a:
- server rack
- mainframe
- workstation
- dumb terminal
Answer: C) workstation
Explanation: Workstations have high-end processors and graphics.
6. A system that helps managers analyse "what-if" situations is a:
- device driver
- word processor
- TPS
- Decision Support System (DSS)
Answer: D) Decision Support System (DSS)
Explanation: DSS supports semi-structured decisions.
7. Fugaku and Frontier are examples of:
- tablets
- minicomputers
- mainframes
- supercomputers
Answer: D) supercomputers
Explanation: They are among the world's fastest supercomputers.
8. Reading MCQ answer sheets with a special scanner is an example of:
- voice output
- source data automation (OMR)
- manual input
- batch printing
Answer: B) source data automation (OMR)
Explanation: OMR captures data directly from the marked sheet.
9. Which of the following is a logical operation?
- Typing a letter
- Comparing whether A B
- Adding two numbers
- Printing a page
Answer: B) Comparing whether A B
Explanation: Comparisons are logical operations done by the ALU.
10. Which is an example of a digital computer?
- Slide rule
- Mercury thermometer
- Laptop
- Analog voltmeter
Answer: C) Laptop
Explanation: Laptops process discrete binary data.
11. An ATM withdrawal is an example of:
- online real-time processing
- offline input
- batch processing
- manual processing
Answer: A) online real-time processing
Explanation: The account is updated immediately.
12. "Analog computers , digital computers ."
- store; print
- measure; count
- type; display
- count; measure
Answer: B) measure; count
Explanation: Analog measures continuous quantities; digital counts digits.
13. A digital computer works on:
- discrete values (0 and 1)
- pressure and temperature only
- continuous values only
- radio waves
Answer: A) discrete values (0 and 1)
Explanation: Digital computers process binary digits.
14. Minicomputers are also called:
- personal computers
- mid-range computers
- analog computers
- handheld computers
Answer: B) mid-range computers
Explanation: They lie between mainframes and microcomputers.
15. The correct order of the machine (instruction) cycle is:
- Fetch, Decode, Execute, Store
- Decode, Fetch, Store, Execute
- Execute, Fetch, Decode, Store
- Store, Execute, Decode, Fetch
Answer: A) Fetch, Decode, Execute, Store
Explanation: The CPU fetches an instruction, decodes it, executes it and stores the result.
16. Small, very fast storage locations inside the CPU are called:
- sectors
- registers
- ports
- cylinders
Answer: B) registers
Explanation: Registers hold data the CPU is working on right now.
17. Which type of computer is generally the most accurate?
- Analog
- Digital
- Hybrid analog-only part
- Mechanical
Answer: B) Digital
Explanation: Digital computers count exactly, so they are highly accurate.
18. In a CBIS, rules and instructions for using the system are called:
- data
- hardware
- procedures
- networks
Answer: C) procedures
Explanation: Procedures guide people in operating the system.
19. Processing shared among several networked computers is called:
- batch processing
- distributed processing
- single-user processing
- manual processing
Answer: B) distributed processing
Explanation: Work is distributed across computers in a network.
20. Which is NOT part of the CPU?
- ALU
- Control Unit
- Registers
- Hard disk
Answer: D) Hard disk
Explanation: The hard disk is secondary storage, outside the CPU.
21. The fastest and most expensive computers are:
- mainframes
- minicomputers
- supercomputers
- microcomputers
Answer: C) supercomputers
Explanation: Supercomputers use thousands of processors in parallel.
22. A system that produces monthly summary reports for managers is a(n):
- TPS
- Expert System
- Management Information System (MIS)
- Operating System
Answer: C) Management Information System (MIS)
Explanation: MIS provides regular reports for management.
23. Processing transactions in groups collected over a period is called:
- interactive processing
- batch processing
- parallel printing
- real-time processing
Answer: B) batch processing
Explanation: E.g. payroll or utility bills are processed in batches.
24. Which unit fetches, decodes and directs the execution of instructions?
- ALU
- Output unit
- Control Unit
- Power supply
Answer: C) Control Unit
Explanation: The CU controls and coordinates all operations.
25. Programs that tell the hardware what to do are called:
- registers
- hardware
- peripherals
- software
Answer: D) software
Explanation: Software is a set of programs.
Page 1 of 2 Next
Practise Types of Computers and Basic Operations MCQs
More Computer Science chapters
- Unit 1: Computer Systems MCQs
- Introduction and History of Computers MCQs
- Introduction to Mobile Applications and Platforms MCQs
- Unit 2: Computational Thinking and Algorithms MCQs
- HTML5 for Mobiles MCQs
- Unit 3: Programming Fundamentals MCQs
- Input and Output Devices MCQs
- Android OS: Architecture, Framework and Application Development MCQs
- Unit 4: Data and Analysis MCQs
- Storage Units and Memory MCQs
- iOS: Architecture and Framework MCQs
- Unit 5: Application of Computer Science MCQs