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== {{header|ZX Spectrum Basic}} ==
The ZX Spectrum usesdoes Not make a difference between capital or lower character variable names. A normal variable can be severall letters long, any DEF FN, FOR/NEXT, DIM (STRING or DATA) array name is a single letter variablesvariable namesname. None of these are special variables. There are a set of system variables held at a fixed memory addresses, which can be accessed via PEEK and POKE functions. The system variables and addresses are:
* 23552 KSTATE - Keyboard state.
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