GCSE EDEXCEL Topic 2A Bit patterns In this video we take a look at the humble bit pattern and understand that any given bit pattern can actually represent many different forms of data. Also in this topic... GCSE EDEXCEL Topic 2A Number bases GCSE EDEXCEL Topic 2A Signed integers using two’s complement GCSE EDEXCEL Topic 2A Adding two 8 bit binary integers GCSE EDEXCEL Topic 2A Binary shifts GCSE EDEXCEL Topic 2A Why hexadecimal is used in computer science