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Personal Computer Model 00

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Personal Computer Model 00

1972
8 in. x 14 in. x 9 in. (20.32 cm x 35.56 cm x 22.86 cm)

RCA,
Joseph A. Weisbecker, (1932–1990)

Object Type: Electronic Equipment
Materials: Metal, plastic, electrical components
Accession Number: S.226.2
"Weisbecker intended the Model 00 not as a business machine, but a fun machine for entertaining and educational games. It processed programs fed from punch cards or magnetic tape cassettes like the ones used here for a later iteration of the personal computer"

Rear photo show connectors for TV video or RF, [audio] tape input and output, ext[ernal] speaker. Front photo shows 4 switches "R SEL" presumably to select one of 16 registers. there are 8 data lights and eight data switches. There are three "bus sel[ect]" switches, which suggests eight bus states. There are a number of switches and lights for other features. There is also a hexidecimal (16 digit) keypad. The front panel is labled with Weisbecker's name.
All these are features of the COSMAC microprocessor and of the various COSMAC prototypes development products. Study of the details of early papers and the COSMAC datasheets, would likely establish correspondences between this front panel and specific features. Internal components of this obviously handmade prototype would date parts of it construction. (Herb Johnson)

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