A fiber-optic telecommunications network transmits data over long distances by sending light pulses through glass cables.
Explain how this physical transmission medium represents data in a binary format, and why a two-state (binary) signal is preferred over a multi-state signal (such as ten different levels of light intensity).
Practise Edexcel GCSE Computer Science Binary with exam-style questions for GCSE Computer Science. 100 questions 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, matched to the Edexcel GCSE Computer Science (1CP2) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.