AQA Computer Science Hardware Revision Notes
Master AQA Computer Science Hardware using simple revision notes, key facts and practice questions — all generated by AI for your exam.
Hardware refers to the physical components of a computer system that are essential for its operation. This includes devices such as the CPU, RAM, storage, and input/output devices, which all work together to perform tasks and run software.
Key Concepts
- 1CPU (Central Processing Unit)
- 2RAM (Random Access Memory)
- 3Storage Devices (HDD, SSD)
- 4Input Devices (Keyboard, Mouse)
- 5Output Devices (Monitor, Printer)
Simple Explanation
Hardware is the tangible part of a computer that you can touch and see. It includes the main components like the processor, which does the calculations, memory that stores data temporarily, and devices like keyboards and monitors that allow you to interact with the computer. Without hardware, software cannot run.
Memory Trick
“Remember 'C.R.I.S.P.' for hardware components: C for CPU, R for RAM, I for Input devices, S for Storage, and P for Output devices.”
Flashcards
What does CPU stand for?
Tap to reveal answer
Exam Questions
Describe and explain the function of the CPU in a computer system. [6 marks]
6 marksView mark scheme hint▾
Discuss the role of the CPU, its components (ALU, Control Unit), and its impact on overall performance.
Explain how RAM affects the performance of a computer. [4 marks]
4 marksView mark scheme hint▾
Mention the role of RAM in temporary data storage and how it influences multitasking capabilities.
What is meant by 'storage devices' in the context of computer hardware? [2 marks]
2 marksView mark scheme hint▾
Define storage devices and give examples such as HDD and SSD.
Practice Quiz
What is the main function of the CPU?
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