Year 10 is the first year of GCSE Computer Science in England. Programming moves into serious territory — arrays, nested loops, subprograms with parameters, string handling and file operations — usually in Python, and students learn to trace an algorithm by hand as well as write one.

Theory covers data representation, computer architecture and the fetch-execute cycle, memory and storage, and networks. AQA, OCR, Pearson and WJEC all assess a mix of written theory and practical programming; the board pages carry the specification detail.

Curriculum Breakdown

Important Topics

Programming Techniques — Arrays, nested loops, subprograms with parameters and file handling.
Algorithms — Pseudocode, flowcharts, hand-tracing, and linear and binary search.
Data Representation — Binary, hexadecimal, character sets, images and sound.
Computer Architecture — CPU components, the fetch-execute cycle and factors affecting performance.
Memory & Storage — RAM, ROM, cache, secondary storage and compression.
Networks — Topologies, protocols, the TCP/IP stack and how data is transmitted.

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