Topic 2A – Binary 20. Pearson Edexcel GCSE (1CP2) Topic 2A Bit patterns 21. Pearson Edexcel GCSE (1CP2) Topic 2A Number bases 22. Pearson Edexcel GCSE (1CP2) Topic 2A Signed integers using two’s complement 23. Pearson Edexcel GCSE (1CP2) Topic 2A Converting between denary and 8-bit binary 24. Pearson Edexcel GCSE (1CP2) Topic 2A Adding two 8-bit binary integers 25. Pearson Edexcel GCSE (1CP2) Topic 2A Binary shifts 26. Pearson Edexcel GCSE (1CP2) Topic 2A Converting between denary and two-digit hexadecimal 27. Pearson Edexcel GCSE (1CP2) Topic 2A Why hexadecimal is used in computer science
