Computer Awareness CPU MCQ,s

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