GCSE EDEXCEL Topic 2A Why hexadecimal is used in computer science This video takes a look at why hexadecimal is often used in computer science Also in this topic... GCSE EDEXCEL Topic 2A Bit patterns GCSE EDEXCEL Topic 2A Number bases GCSE EDEXCEL Topic 2A Signed integers using two’s complement GCSE EDEXCEL Topic 2A Converting between denary and 8 bit binary GCSE EDEXCEL Topic 2A Binary shifts