EDEXCEL Computer Science Converting binary worksheet #1 2.1.3 be able to convert between denary and 8-bit binary numbers (0 to 255, -128 to +127) Made for Edexcel but could be used with other GCSE CS courses. Includes: Worksheet (STUDENT COPY) Answer sheet (TEACHER COPY)

EDEXCEL Computer Science Adding binary worksheet #1 2.1.4 be able to add together two positive binary patterns and apply logical and arithmetic binary shifts Made for Edexcel but could be used with other GCSE CS courses. Includes: Worksheet (STUDENT COPY) Answer sheet (TEACHER COPY)

EDEXCEL Computer Science Denary to two complements worksheet #1 2.1.2 understand how computers represent and manipulate unsigned integers and two’s complement signed integers Made for Edexcel but could be used with other GCSE CS courses. Includes: Worksheet (STUDENT COPY) Answer sheet (TEACHER COPY)

1.2.2 Secondary storage wordsearch - OCR GCSE Computer Science Wordsearch covering key terms for 1.2.2 Two versions With questions to hint the key terms to find in the wordsearch Key terms only (useful for EAL and SEND students).