GCSE Computer Science

Question 1

What is the binary representation of the decimal number 13?

Accepted Answer

1101

Answer

1011

Answer

1110

Answer

1001

Question 2

Which of the following is an example of volatile memory?

Accepted Answer

RAM

Answer

ROM

Answer

Hard Drive

Answer

SSD

Question 3

What does ALU stand for in the context of a CPU?

Accepted Answer

Arithmetic Logic Unit

Answer

Automated Logic Unit

Answer

Array Loading Utility

Answer

Advanced Language Unit

Question 4

How many bits are in one byte?

Accepted Answer

8

Answer

4

Answer

16

Answer

32

Question 5

What is the hexadecimal equivalent of the decimal number 255?

Accepted Answer

FF

Answer

FE

Answer

EF

Answer

100

Question 6

Which storage medium typically has the fastest read/write access speed?

Accepted Answer

SSD

Answer

DVD

Answer

HDD

Answer

Magnetic Tape

Question 7

What is the primary function of the Control Unit (CU) within a CPU?

Accepted Answer

Directs the operation of the processor by fetching, decoding, and executing instructions

Answer

Performs arithmetic calculations

Answer

Stores frequently used data

Answer

Manages communication between the CPU and RAM