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Exam — The Binary Number System

Cambridge IGCSE 0478-style paper. Answer all questions in the spaces provided.

7 questions·28 marks total·~35 min

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Question 1 of 7

4 marks

Computers represent numbers using the binary number system.

(a)

Statehow many distinct digits are used in the binary number system and name them.

[1]

(b)

Statehow many bits there are in one byte.

[1]

(c)

Giveone reason why computers use the binary system rather than the denary (decimal) system.

[2]