GCSE GCSE Computer Science

Question 1

What is the decimal value of the binary number 1010?

Accepted Answer

10

Answer

8

Answer

12

Answer

14

Question 2

How many bits are in one byte?

Accepted Answer

8

Answer

4

Answer

16

Answer

32

Question 3

What does ASCII stand for?

Accepted Answer

American Standard Code for Information Interchange

Answer

Advanced System Code for International Information

Answer

Automatic Standard Character Interchange Interface

Answer

Applied System Code for Information Input

Question 4

Which number system uses base 16?

Accepted Answer

Hexadecimal

Answer

Binary

Answer

Octal

Answer

Decimal

Question 5

What is the result of the binary addition 1011 + 0101?

Accepted Answer

10000

Answer

1100

Answer

1111

Answer

10001

Question 6

What is the purpose of a check digit?

Accepted Answer

To detect errors in data entry or transmission

Answer

To speed up data transmission

Answer

To encrypt sensitive data

Answer

To compress file sizes

Question 7

What does the term 'pixel' stand for?

Accepted Answer

Picture element

Answer

Pixelated excellence

Answer

Photo index link

Answer

Projected image cell