Computer science Paper 1

Question 1

What is the most important component of the computer?

Answer 1

The CPU (central processing unit)

Question 2

What is the CPU responsible for?

Answer 2

All of the computers processing

Question 3

Name the main components of a computer

Answer 3

.input devices
.Main memory
.Output devices
.Secondary storage

Question 4

When was the stored program computer born?

Answer 4

1943-1944

Question 5

Are computer programs and the data the programs are using stored in the same memory?

Answer 5

Yes

Question 6

Name 4 registers in the CPU

Answer 6

.Program Counter
. ALU
. Control unit
. General purpose registers

Question 7

What is the job of a program counter

Answer 7

A special purpose register that holds the address of the next instruction to be executed

Question 8

What is the job of a general purpose register

Answer 8

Hold data, such as numbers during arithmetic calculations, some architectures have just a single register called the Accumulator