Computer organisation

Question 1

CPU (central processing unit)

Answer 1

The brain of the computer - “the primary component of the computer that executes instructions by processing data and controlling other hardware components”

Question 2

ALU (arithmetic logic unit)

Answer 2

The part of the computer that performs arithmetic operations and logical operations

Question 3

CU (control unit)

Answer 3

The component of the CPU that manages and coordinates the activities of the computer by directing the flow of instructions between the CPU and other components

Question 4

Registers

Answer 4

Small, high-speed memory location withint he CPU that temporary stores data and the instructions being processed

Question 5

MAR (memory address register)

Answer 5

One of the registers in the CPU that holds the memory address of the data or information to be fetched from or sent to memory

Question 6

MDR (memory data register)

Answer 6

One of the registers within the CPU that holds the actual data being transfered to or from memory

Question 7

Primary memory

Answer 7

Main memory of the computer, directly accessible by the CPU, used to store data and instructions currently in use. It is made up of the RAM and the ROM

Question 8

RAM (random access memory)

Answer 8

Volatile (temporary) primary memory that stores data and instructions that are currently being used by the CPU

Question 9

ROM (read-only memory)

Answer 9

Non-volatile primary memory that stores data and instructions needed for the computer to start up

Question 10

Web browser

Answer 10

A web browser is a software application that retrieves, interprets, and displays content from the internet.