Sequence 8 — Computer Systems & Architecture
Processor architecture, the fetch-decode-execute cycle, registers, memory, secondary storage, operating systems, translators and processor performance. AQA 4.6 & introductory 4.7, Lessons 46–55.
The Purpose and Function of the Processor
- Explain the role of the CPU
- Describe the Fetch–Decode–Execute cycle
Lesson ready
Registers and the Fetch–Decode–Execute Cycle
- Identify the purpose of key CPU registers
- Trace the Fetch–Decode–Execute cycle
Lesson ready
Processor Performance
- Explain factors affecting CPU performance
- Compare processors using technical specifications
Lesson ready
Types of Processor
- Compare different processor types
- Explain why specialist processors are used
Lesson ready
Primary Memory
- Distinguish between RAM, ROM and cache
- Explain volatile and non-volatile storage
Lesson ready
Secondary Storage
- Compare secondary storage technologies
- Recommend suitable storage devices
Lesson ready
System Software
- Explain the functions of an operating system
- Identify different types of utility software
Lesson ready
Language Translators
- Distinguish between compilers, interpreters and assemblers
- Explain how source code becomes executable code
Lesson ready