Computer System Quiz

Which component of a computer system is responsible for executing instructions?

• Memory

• ALU

• System Bus

• Input Device

What is the correct order of phases in an instruction cycle?

• Execute → Decode → Fetch

• Decode → Fetch → Execute

• Fetch → Decode → Execute

• Fetch → Execute → Decode

What does the system bus NOT include?

• Data Bus

• Control Bus

• Instruction Bus

• Address Bus

Registers are primarily used to:

• Store long-term data

• Transfer data between CPU and memory

• Improve system performance by providing fast data access

• Perform logical operations

Which of the following is considered primary memory?

• Hard Disk

• RAM

• CD-ROM

• USB Drive

What is the role of input devices in a computer system?

• To store data permanently

• To convert user input into machine-readable form

• To execute arithmetic operations

• To process instructions

A uniprocessor system consists of:

• Multiple CPUs

• A single CPU

• Multiple ALUs

• Multiple Registers

What is a key advantage of a multiprocessor system over a uniprocessor system?

• Lower cost

• Simpler architecture

• Higher processing speed

• Lower power consumption

Which of the following is an example of a multiprocessor system?

• Personal computer

• Supercomputer

• Embedded system

• Calculator

The main difference between a microprocessor and a microcontroller is:

• A microprocessor has built-in RAM and ROM

• A microcontroller is used in general-purpose computing

• A microcontroller integrates CPU, memory, and I/O ports

• A microprocessor consumes less power