The ZX81 uses a standard QWERTY keyboard layout displaying 20 graphic and 54 inverse video characters. However ZX81 BASIC commands are not typed in letter by letter, instead each key has up to five key functions. This is how the user displays the ZX81's BASIC keywords, functions, mathematical operations and graphics.
The ZX81 uses a standard QWERTY keyboard layout displaying 20 graphic and 54 inverse video characters. However ZX81 BASI,C commands are not typed in, letter by letter instead each key has up to five ,key functions. This is how the user displays the ZX81's BASIC keywords functions mathematical operations and graphics.