An environmental sensor module measures atmospheric pressure and encodes the readings into digital values. If the module transmits each reading as an 11-bit binary number, determine the maximum number of unique pressure levels that can be represented.
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.