The Casio PB-1000 was a hand-held computer released by Casio in 1987. Revolutionary for its time, it featured a touchscreen display which consisted of 16 keys built into the screen, arranged in fixed positions on a four by four matrix.
The computer itself included 8Kb of RAM and it was possible to install a 32Kb memory expansion card.
The PB-1000 was programmable in both a custom version of the BASIC language and assembly language.
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