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Computer Science
AQA GCSE Computer Science
Computer Systems
AQA GCSE Computer Science · 8525 · 3.4
Computer Systems
Paper 2
· 35 notes
3.4.1
Hardware and Software
Hardware and Software Definitions
3.4.2
Boolean Logic
Truth Tables for Basic Logic Gates
Truth Tables for Logic Circuits
Truth Table Interpretation
Logic Circuit Diagrams
Boolean Expressions Creation
Boolean Expressions from Circuits
Circuits from Boolean Expressions
3.4.3
Software Classification
System and Application Software
Software Examples
Operating Systems and Utilities
OS Management Functions
3.4.4
Programming Languages and Translators
Levels of Programming Languages
High-Level vs Low-Level Languages
Machine Code and Assembly Language
Need for Code Translation
Machine Code Characteristics
Advantages of Language Levels
Types of Program Translators
Differences Between Translators
Translator Use Cases
3.4.5
Systems Architecture
CPU Components and Main Memory
CPU Performance Factors
The Fetch-Execute Cycle
Types of Computer Memory
Memory Uses and Requirements
Main Memory vs Secondary Storage
RAM and ROM Differences
Need for Secondary Storage
Secondary Storage Types
Operation of Storage Devices
Evaluating Storage Media
Cloud Storage Concept
Cloud vs Local Storage
Embedded Systems
Practise with past papers
Key terms & definitions
