About: ECMA-23

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ECMA-23 is a standard for a bit-paired keyboard layoutadopted in 1969 and revised in 1975. As a bit-paired layout, shifted keyscorrespond to toggling bits in the ASCII keycode.This is most visible in the digits on the top row, where shifting6789 give &', and ;+,:* and -= are paired. The ECMA-23 layout has two options, being the same as the ISO 2530 or the ANSI-X4.14 bit-paired layout.

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  • ECMA-23 is a standard for a bit-paired keyboard layoutadopted in 1969 and revised in 1975. As a bit-paired layout, shifted keyscorrespond to toggling bits in the ASCII keycode.This is most visible in the digits on the top row, where shifting6789 give &', and ;+,:* and -= are paired. The ECMA-23 layout has two options, being the same as the ISO 2530 or the ANSI-X4.14 bit-paired layout. In the UK, ECMA-23 layout keyboards were used on most 8-bit computers such as theAcorn BBC computers and the earlier Atom and Systems, the Amstrad CPC series, and(to an extent) the ZX Spectrum. While bit-paired layouts have generally given wayto typewriter layouts it remains as the Japanese keyboard layout. (en)
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  • ECMA-23 is a standard for a bit-paired keyboard layoutadopted in 1969 and revised in 1975. As a bit-paired layout, shifted keyscorrespond to toggling bits in the ASCII keycode.This is most visible in the digits on the top row, where shifting6789 give &', and ;+,:* and -= are paired. The ECMA-23 layout has two options, being the same as the ISO 2530 or the ANSI-X4.14 bit-paired layout. (en)
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  • ECMA-23 (en)
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