For the Boolean expression Q = (A AND B) OR NOT C, state Q when A = 1, B = 0 and C = 0.
From Paper 2: Computing concepts
6.22 marks
Complete the output column of a truth table for Q = A XOR B for inputs AB = 00, 01, 10, 11.
From Paper 2: Computing concepts
7.13 marks
Describe the purpose of the ALU, control unit and registers in a CPU.
From Paper 2: Computing concepts
7.24 marks
Describe the fetch–execute cycle.
From Paper 2: Computing concepts
7.36 marks
Discuss how clock speed, number of cores and cache size affect the performance of a CPU.
From Paper 2: Computing concepts
8.12 marks
State two differences between RAM and ROM.
From Paper 2: Computing concepts
8.23 marks
Compare solid-state drives with magnetic hard disks.
From Paper 2: Computing concepts
8.32 marks
Explain the purpose of virtual memory.
Score 0 / 23 · 0 of 8 marked
This paper is written by Plasmo in the style of the AQA GCSE Computer Science exam. It is not a past paper and is not produced or endorsed by the exam board.
Computer systems Exam Questions: AQA GCSE Computer Science | Plasmo