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  1. GCSE
  5. Lessons

Computer Science Lessons

Spec 8525

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Step-by-step AQA GCSE Computer Science lessons by topic, building up to exam-style questions. Build strong foundations in binary, logic and core programming constructs before moving on to the more complex algorithm design and evaluation questions.

Fundamentals of algorithms

Representing algorithms

Efficiency of algorithms

Searching algorithms

Sorting algorithms

Programming

Data types

Programming concepts

Arithmetic operations in a programming language

Relational operations in a programming language

Boolean operations in a programming language

Data structures

Input/output

String handling operations in a programming language

Random number generation in a programming language

Structured programming and subroutines (procedures and functions)

Robust and secure programming

Fundamentals of data representation

Number bases

Converting between number bases

Units of information

Binary arithmetic

Character encoding

Representing images

Representing sound

Data compression

Computer systems

Hardware and software

Boolean logic

Software classification

Classification of programming languages and translators

Systems architecture

Cyber security

Fundamentals of cyber security

Cyber security threats

Methods to detect and prevent cyber security threats

Relational databases and structured query language (SQL)

Relational databases

Structured query language (SQL)

Fundamentals of computer networks

Ethical, legal and environmental impacts of digital technology on wider society, including issues of privacy