Microprocessor Unit -1Quiz

A microprocessor fetches, decodes, and executes _____.

• program

• mnemonics

• instruction

• Opcode

What is a microprocessor?

• A device used for signal amplification

  
  

• A programmable electronic chip that processes data

  
  

• A storage device for data

  
  

• A power supply unit

  
  

What is the primary function of the ALU in a microprocessor?

• To control input/output devices

  
  

• To store data

  
  

• To perform arithmetic and logic operations

  
  

• To decode instructions

  
  

Which bus in a microprocessor carries data between the processor and memory?

• Address bus

  
  

• Control bus

  
  

• Data bus

  
  

• Serial bus

  
  

What is the main purpose of the Program Counter (PC) in a microprocessor?

• To store data

  
  

• To decode instructions

  
  

• To point to the address of the next instruction

  
  

• To control external devices

  
  

What is the primary role of the Control Unit in a microprocessor?

• Perform arithmetic operations

  
  

• Manage data flow and decode instructions

  
  

• Store temporary data

  
  

• Handle power supply to the processor

  
  

What is "pipelining" in the context of microprocessors?

• A technique to increase power efficiency

• A method to execute multiple instructions simultaneously

  
  

• A system for data storage

  
  

• A way to connect multiple processors

  
  

What does an interrupt do?

• Speeds up processing

  
  

• Temporarily halts the current program to handle a specific event

  
  

• Deletes memory contents

  
  

• Provides additional storage

  
  

Which register in a microprocessor is used to store the results of arithmetic and logical operations?

• Accumulator

  
  

• Program Counter

  
  

• Stack Pointer

  
  

• Instruction Register

  
  

What is the purpose of registers in a microprocessor?

• To store permanent data

  
  

• To store temporary data and instructions

  
  

• To control external devices

  
  

• To generate clock signals