Computers represent data using binary patterns. These patterns can represent signed or unsigned integers.
Convert the denary number 73 into an 8-bit unsigned binary integer.
117 exam-style questions on Edexcel GCSE Computer Science Binary, covering Binary representation and number of states, Unsigned and two's complement integers, Converting denary and 8-bit binary, Binary addition and binary shifts, Concept of overflow, and Hexadecimal notation and conversion. Each one has a worked solution and a mark scheme showing where the marks go.