Central Processing Unit (CPU MCQ,s)
What is the full form of CPU?
(a) Central Processing Unit ✔
(b) Cyclic Program Unit
(c) Coded Processing Unit
(d) Computer Processing Unit
CPU is often referred to as the _________ of the computer.
(a) Heart ✔
(b) Lungs
(c) Eyes
(d) Ears
The main function of the CPU is to:
(a) Store data
(b) Perform calculations and execute instructions ✔
(c) Connect to external devices
(d) Display information on the monitor
The three main components of a CPU are:
(a) ALU, Control Unit, Memory
(b) ALU, Control Unit, Cache ✔
(c) Memory, Hard Drive, Motherboard
(d) Monitor, Keyboard, Mouse
ALU stands for:
(a) Arithmetic Logic Unit ✔
(b) Advanced Logic Unit
(c) Arithmetic Linking Unit
(d) Advanced Linking Unit
The Control Unit is responsible for:
(a) Performing calculations
(b) Fetching instructions, decoding them, and controlling their execution ✔
(c) Storing data temporarily
(d) Connecting to peripheral devices
The CPU communicates with memory through a group of wires called the:
(a) Data bus ✔
(b) Address bus
(c) Control bus
(d) All of the above
The speed of a CPU is measured in:
(a) Hertz (Hz) ✔
(b) Megabytes (MB)
(c) Gigabytes (GB)
(d) Kilobytes (KB)
A higher clock speed of a CPU generally indicates:
(a) Slower processing
(b) Faster processing ✔
(c) No impact on processing speed
(d) More cores
The number of cores in a CPU refers to:
(a) The amount of RAM
(b) The number of independent processing units within the CPU ✔
(c) The clock speed of the CPU
(d) The type of storage device
A multi-core CPU can improve the performance of:
(a) Tasks that can be broken down into independent parts ✔
(b) Tasks that require a lot of storage space
(c) Tasks that require a high-resolution display
(d) All of the above
Cache memory is a small amount of high-speed memory located:
(a) Inside the CPU ✔
(b) On the motherboard
(c) On the hard drive
(d) Inside the RAM
Cache memory is used to improve CPU performance by:
(a) Storing frequently accessed data and instructions ✔
(b) Increasing the amount of RAM available
(c) Reducing the clock speed of the CPU
(d) None of the above
CISC (Complex Instruction Set Computing) processors have:
(a) Fewer instructions, but each instruction can do more complex tasks ✔
(b) More instructions, but each instruction is simpler
(c) Higher clock speeds
(d) Larger cache size
RISC (Reduced Instruction Set Computing) processors have:
(a) Fewer instructions, but each instruction can do more complex tasks
(b) More instructions, but each instruction is simpler ✔
(c) Higher clock speeds
(d) Larger cache size
Hyperthreading is a technology that allows a single CPU core to:
(a) Run multiple programs simultaneously ✔
(b) Increase the clock speed dynamically
(c) Access more RAM
(d) Reduce power consumption
Virtualization is a technology that allows:
(a) A single physical computer to run multiple operating systems ✔
(b) A computer to access
What does CPU stand for?
(a) Central Processing Unit ✔
(b) Computer Processing Unit
(c) Core Processing Unit
(d) Centralized Processing Unit
The CPU is considered the:
(a) Brain ✔
(b) Heart
(c) Lungs
(d) Eyes
Which of the following is NOT a main component of a CPU?
(a) Control Unit
(b) Arithmetic Logic Unit (ALU)
(c)Graphics Processing Unit (GPU) ✔
(d) Registers
The ALU performs:
(a) Data transfer
(b) Logical operations (AND, OR, NOT) ✔
(c) Instruction fetching
(d) Communication with external devices
Registers are used for:
(a) Short-term data storage ✔
(b) Long-term data storage
(c) Program execution control
(d) Communication with RAM
CPU speed is measured in:
(a) Megahertz (MHz) or Gigahertz (GHz) ✔
(b) Kilobytes (KB) or Megabytes (MB)
(c) Milliseconds (ms) or Seconds (s)
(d) Volts (V) or Amps (A)
A higher clock speed generally indicates:
(a) Faster processing ✔
(b) Slower processing
(c) No difference in speed
(d) More cores
What is the term for a CPU with multiple cores?
(a) Single-core processor
(b) Multi-core processor ✔
(c) Hyperthreaded processor
(d) Virtual processor
Hyperthreading allows a single core to:
(a) Run multiple processes simultaneously ✔
(b) Increase clock speed
(c) Access more memory
(d) Reduce power consumption
Caches are small, high-speed memories that store:
(a) Frequently accessed data ✔
(b) All data from RAM
(c) Instructions for the CPU
(d) User file