Computer Structure

Question 1

Name the three key areas of the processor, and their functions.

Answer 1

A processor is made of three key areas. The ALU, CU and Registers.

Arithmetic Logic Unit (ALU) performs mathematical calculations and logical operations.

Control Unit (CU) directs the computer system.

Registers are high speed memory within the processor that store the current instruction and calculation.

Question 2

What is the address bus?

Answer 2

Address bus is unidirectional and carries the memory location to be saved to or loaded from to memory from the processor.

Question 3

What is the data bus?

Answer 3

Data bus is bidirectional as it can carry data from the processor to be saved or to the processor when loaded.

Question 4

Explain what encryption is.

Answer 4

For additional security data can be encrypted. This does not stop a hacker gaining access to it or messing it up. However, it does stop a hacker from being able to intercept messages and read your data.