The Binary Buzz
cambridge • O-Level

O-Level Computer Science

This course has all the necessary material to prepare you for your O-level Computer Science 2210

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OverviewLecturesNotes & CheatsheetsPast PapersFlashcards
Number Systems Cheatsheet

Binary, decimal, hex conversions + two’s complement.

Logic Gates Quick Guide

AND/OR/NOT/XOR truth tables and simple circuits.

Algorithm Design Patterns

Flowcharts, pseudocode conventions, and common pitfalls.