BIT BY BYTE

GCSE COMPUTER SCIENCE

AQA 8525 — All units and Python track

Unit 1

Fundamentals of Algorithms

Searching, sorting, and computational thinking

Unit 2A

Programming Basics

Variables, data types, input/output, operators

Unit 2B

Programming Techniques

Subroutines, validation, testing and debugging

Unit 3

Data Representation

Binary, hex, characters, images, sound and compression

Unit 4

Computer Systems

Boolean logic, software, programming languages, CPU architecture, memory and storage

Unit 5

Computer Networks

LAN/WAN, topologies, protocols and the TCP/IP model

Unit 6

Cyber Security

Threats, social engineering, prevention

Unit 7

Relational Databases & SQL

Tables, keys, queries, normalisation

Unit 8

Impacts of Digital Technology

Ethics, legislation, environment, privacy

Coding

Python Programming Track

Complete Python course mapped to AQA exam questions

REVISION WORKSHEETS

170 marks

Complete revision summaries, exam questions & mark schemes for every topic

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