1. What is the primary function of the CPU?
(A) Store data
(B) Display graphics
(C) Process instructions
(D) Control power supply
2. CPU stands for:
(A) Central Program Unit
(B) Computer Processing Unit
(C) Central Processing Unit
(D) Control Processing Unit
3. Which part of the CPU performs arithmetic and logical operations?
(A) Arithmetic Logic Unit (ALU)
(B) Control Unit
(C) Cache
(D) Registers
4. Which CPU component directs all operations of the computer?
(A) Control Unit
(B) ALU
(C) Cache
(D) RAM
5. Registers in CPU are used for:
(A) Long-term storage
(B) Temporary storage of instructions and data
(C) Displaying output
(D) Controlling input devices
6. Which is the fastest type of CPU memory?
(A) RAM
(B) Cache
(C) Hard disk
(D) ROM
7. The speed of a CPU is measured in:
(A) Bytes
(B) Volts
(C) Watts
(D) Hertz (Hz)
8. Modern CPUs contain how many cores?
(A) Single-core
(B) Dual-core
(C) All of the above
(D) Quad-core or more
9. Which CPU component fetches instructions from memory?
(A) Registers
(B) ALU
(C) Cache
(D) Control Unit
10. CPU executes instructions in which sequence?
(A) Input → Output → Process
(B) Decode → Execute → Fetch
(C) Fetch → Decode → Execute
(D) Execute → Fetch → Decode
11. Which part of CPU temporarily stores frequently used data for faster access?
(A) Cache
(B) RAM
(C) Registers
(D) Hard disk
12. The brain of the computer is:
(A) CPU
(B) Hard Disk
(C) RAM
(D) Monitor
13. ALU is responsible for:
(A) Input/output control
(B) Arithmetic and logical operations
(C) Storing programs
(D) Power regulation
14. Which CPU register stores the address of the next instruction?
(A) Program Counter (PC)
(B) Instruction Register (IR)
(C) Accumulator
(D) Cache
15. Which CPU register stores the result of operations performed by ALU?
(A) Accumulator
(B) Program Counter
(C) Instruction Register
(D) Cache
16. What type of CPU cache is closest to the processor?
(A) L2
(B) L1
(C) L3
(D) L4
17. Multi-core CPU improves:
(A) Power consumption
(B) Monitor resolution
(C) Hard disk speed
(D) Processing speed and multitasking
18. CPU socket refers to:
(A) The power supply connector
(B) USB connector
(C) Input/output port
(D) Physical connector on motherboard for CPU
19. Which of the following is a CPU manufacturer?
(A) Intel
(B) Both A and B
(C) AMD
(D) Nvidia
20. Overclocking a CPU is done to:
(A) Reduce power consumption
(B) Improve storage
(C) Reduce heat
(D) Increase clock speed and performance
21. Instruction Register (IR) stores:
(A) Current instruction being executed
(B) Data temporarily
(C) Next instruction address
(D) CPU temperature
22. The CPU communicates with memory via:
(A) Control signals
(B) All of the above
(C) Address bus
(D) Data bus
23. Which CPU part determines how data flows inside the processor?
(A) ALU
(B) Control Unit
(C) Registers
(D) Cache
24. CPU performance can be improved by:
(A) Increasing clock speed
(B) Adding more cores
(C) All of the above
(D) Increasing cache size
25. A dual-core CPU has:
(A) Two independent processing units
(B) One processing unit
(C) Three cores
(D) Four cores
26. CPU executes programs stored in:
(A) ROM
(B) RAM
(C) Hard Disk
(D) Cache only
27. CPU heat is typically managed by:
(A) Keyboard
(B) Hard disk
(C) Monitor
(D) Cooling fan or heatsink
28. Modern CPUs support which type of processing?
(A) Serial only
(B) Single-task only
(C) Parallel and multitasking
(D) None of the above
29. The clock speed of CPU determines:
(A) Memory size
(B) Number of instructions executed per second
(C) Hard disk speed
(D) Monitor resolution
30. CPU interacts with all devices in a computer through:
(A) Mouse
(B) Monitor
(C) Keyboard
(D) Buses
31. Which CPU architecture is most common in personal computers?
(A) RISC-V
(B) ARM
(C) MIPS
(D) x86