1. What does CPU stand for?
(a) Central Protection Unit
(b) Central Processing Unit
(c) Central Power Unit
(d) Central Prerogative Unit
Answer: (b) Central Processing Unit
2. The function of CPU is________?
(a) To provide external storage of text
(b) To communicate with the operator
(c) To read, interpret and process the information and instruction
(d) To provide a hard copy
Answer: (c) To read, interpret and process the information and instruction
3. What are the components of a CPU in a computer?
(a) Input, output, and processing
(b) Control unit, primary and secondary memory
(c) Control unit, arithmetic logic unit, and register
(d) None option is correct.
Answer: (c) Control unit, arithmetic logic unit, and register
4. What is a CPU register?
(a) A temporary storage area within the CPU
(b) A type of computer monitor
(c) A network interface card
(d) A software application
Answer: (a) A temporary storage area within the CPU
5. Which of the following components of the CPU maintains and regulates the flow of information across the processor?
(a) Control Unit (CU)
(b) PC register
(c) ALU
(d) Accumulator
Answer: (a) Control Unit
6. What does the control unit generate to control other units?
(a) Transfer signals
(b) Command signals
(c) More that one of the above
(d) None of the above
Answer: (c) Control signals
7. Which of the following is considered to be the brain of a computer system?
(a) pascal
(b) control unit
(c) CPU
(d) memory
Answer: (c) CPU
8. ALU stands for ?
(a) American Logic Unit
(b) Alternating Logic Unit
(c) Alternate Local Unit
(d) Arithmetic Logic Unit
Answer: (d) Arithmetic Logic Unit
9. ALU consists of______ subsections?
(a) 2
(b) 3
(c) 4
(d) 5
Answer: (a) 2
10. Arithmetic functions of the ALU include.
(a) Add, subtract, move and input
(b) Divide, multiply, compare and output
(c) Input, output, move and compare
(d) Add, subtract divide and multiply
Answer: (d) Add, subtract divide and multiply
11. _____ is used to transfer the data directly to main memory without using CPU? ( CPU MCQ Question and Answer )
(a) Memory Address Register
(b) Device driver
(c) Input/Output interface
(d) DMA controller
Answer: (d) DMA controller ( CPU MCQ Question and Answer )
12. Which of the following tasks in not performed by a computer’s CPU?
(a) Fetching instructions
(b) Instruction interpretation
(c) Storing data permanently
(d) Data processing / processing
Answer: (c) Storing data permanently
13. Which of the following is not a part of the CPU of a computer?
(a) Arithmetic Logic Unit
(b) Control Unit
(c) Main Memory
(d) Mouse
Answer: (d) Mouse
14. _____ is a CPU register, which is used to store the address of the next instruction during program execution?
(a) Accumulator
(b) Index register
(c) Program counter
(d) Memory data register
Answer: (c) program counter
15. A temporary storage area, attached to the CPU, for Input/Output operations, is called as_____?
(a) Buffer
(b) Core
(c) File
(d) Register
Answer: (a) Buffer
16. _____ is a small but very fast memory that is placed between the CPU and main memory?
(a) BUS
(b) CACHE
(c) USB
(d) ROM
Answer: (b) CACHE
17. cache memory is a small amount of extremely fast static _____ and located close to the_____?
(a) RAM, CPU
(b) ROM, Motherboard
(c) RAM, Hard disk
(d) None of the above
Answer: (a) RAM, CPU
CPU MCQ Question and Answer
18. Which of the following is responsible for processing and executing instructions in a personal computer?
(a) CPU
(b) BIOS
(c) RAM
(d) Motherboard
Answer: (a) CPU
19. Which parts of the Computer are used for calculating and comparing?
(a) Modem
(b) Disk Unit
(c) Control Unit
(d) ALU
Answer: (d) ALU
20. The_____unit is that part of the CPU which controls of directs the operations of the processor?
(a) Control
(b) Memory
(c) Arithmetic logic
(d) data
Answer: (a) control
21. The control unit (CU) and the arithmetic logic unit (ALU) together are commonly called_____?
(a) Computational Unit
(b) Storage Unit
(c) Streaming Unit
(d) Processing Unit
Answer: (d) Processing Unit
22. Which unit in a computer is responsible for managing the parts of the computer?
(a) Logic Unit
(b) Arithmetic
(c) Control Unit
(d) None of the above
Answer: (c) Control Unit
23. Which is not a bus for data exchange between CPU and memory?
(a) Data bus
(b) Address bus
(c) Uncontrolled bus
(d) None of the above
Answer: (c) Uncontrolled bus
24. The speed of processor of a computer is measured in_____?
(a) Gigahertz
(b) Baud
(c) BPS
(d) MIPS
Answer: (a)Gigahertz
25. A computer’s CPU consists of millions of tiny switches called_____?
(a) bits
(b) bytes
(c) Transistors
(d) registers
Answer: (c) transistors
26. The_____performs basic operations such as addition, subtraction, multiplication and division, and the_____transfers data to storage after processing?
(a) control unit, ALU
(b) ALU, memory unit
(c) control unit, memory unit
(d) ALU, control unit
Answer: (d) ALU, control unit
27. Where are data and programme stored when the processor uses them?
(a) Secondary memory
(b) Programme memory
(c) Main memory
(d) Disk memory
Answer: (c) Main memory
28. The_____is used to store program data that is currently being executed in the CPU?
(a) auxiliary memory
(b) volatile memory
(c) main memory
(d) cache memory
Answer: (c) main memory
29. The_____is used to store program data that is currently being executed in the CPU?
(a) auxiliary memory
(b) volatile memory
(c) main memory
(d) cache memory
Answer: (d) cache memory
30. Which of the following registers contain the instructions to be executed in CPU?
(a) Index Register
(b) Instructions Register
(c) Memory Data Register
(d) Memory Address Register
Answer: (b) Instructions Register
31. When CPU is executing a Program that is part of the Operating System, it is said to be in ?
(a) Interrupt mode
(b) System mode
(c) Half mode
(d) Simplex mode
Answer: (b) System mode
32. A register in the microprocessor that keeps track of the answer of result of any arithmetic of logic operation is the_____?
(a) Stack pointer
(b) Instruction pointer
(c) Program counter
(d) Accumulator
Answer: (d) Accumulator
33. Which of the following are the two main components of the CPU?
(a) Control Unit and Registers
(b) Control unit and ALU
(c) Registers and Main Memory
(d) ALU and bus
Answer: (b) Control unit and ALU
34. Control Unit (CU) is an integral component of?
(a) CPU
(b) Input/Output device
(c) ALU
(d) RAM
Answer: (a) CPU