OCR GCSE Computer Science Exam Questions By Topic

The Purpose of the CPU, CPU Components & Their Function, Von Neumann Architecture, Characteristics of the CPU, Embedded Systems

The Need for Primary Storage, RAM & ROM, Virtual Memory, The Need for Secondary Storage, Common Types of Storage, Suitable Storage Devices

Units of Data Storage, Processing Binary Data, Data Capacity & Calculating Capacity Requirements, Converting Between Denary & Binary, Binary Addition, Converting Between Denary & Hexadecimal, Converting Between Binary & Hexadecimal, Binary Shifts, Representing Characters, Representing Images, Representing Sound, Compression

Types of Network, Factors of Network Performance, Client Server & Peer to Peer Networks, Local Area Network Hardware, The Internet, Star & Mesh Networks

Modes of Connection, Encryption, IP Addressing & MAC Addressing, Standards in Computing, Network Protocols, The Concept of Layers

Forms of Attack on a Network, Methods of Preventing a Network Attack

The Purpose & Functionality of Operating Systems, The Purpose & Functionality of Utility Software

Impacts of Digital Technology on Wider Society, Legislation in Computer Science

Principles of Computational Thinking, Standard Searching Algorithms, Standard Sorting Algorithms

Inputs, Processes, & Outputs for a Problem, Structure Diagrams, Pseudocode & Flowcharts, Identify Errors in Algorithms, Trace Tables

Fundamental Programming Concepts, Programming Constructs, Common Arithmetic Operators, Common Boolean Operators, Data Types

String Manipulation, File Handling, Records to Store Data, SQL, Arrays, Sub Programs, Random Number Generation

Defensive Design Considerations, Input Validation, Program Maintainability, Testing Programs, Identify Syntax & Logic Errors in Testing, Selecting & Using Suitable Test Data

Boolean Logic Diagrams, Combining Boolean Operators

Levels of Programming Languages, Translators, Compilers & Interpreters, Tools & Facilities in IDEs