IGCSE · Computer Science 0478 · Hardware

Computer architecture: IGCSE Computer Science questions with answers

Free Computer architecture questions for IGCSE Computer Science (0478), part of Hardware. Each question has the answer and the marking points an examiner would look for.

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Computer architecture practice questions

Question 1Structured · 2 marks
(a)

State what is meant by the term program counter.

[1]
(b)

State what is meant by the term cache.

[1]
Show answers and mark scheme
PartAnswer and marking pointsMarks
(a)A register that stores the address of the next instruction to be fetched
A register that stores the address of the next instruction to be fetched B1
1
(b)Small, fast memory that stores frequently used instructions and data
Small, fast memory that stores frequently used instructions and data B1
1
Question 2Structured · 2 marks
(a)

State what is meant by the term cache.

[1]
(b)

State what is meant by the term program counter.

[1]
Show answers and mark scheme
PartAnswer and marking pointsMarks
(a)Small, fast memory that stores frequently used instructions and data
Small, fast memory that stores frequently used instructions and data B1
1
(b)A register that stores the address of the next instruction to be fetched
A register that stores the address of the next instruction to be fetched B1
1

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Original Cambridge-style practice questions written for mentorriyaz.in. These are not Cambridge past paper questions, and this site is not affiliated with or endorsed by Cambridge University Press & Assessment. Updated 2026-11-04. Paper generator · mentorriyaz.in