Artifact Details


Color PLATO Terminal Prototype

Catalog Number



Physical object


Control Data Corporation (CDC)

Identifying Numbers

Other number 4059 On gummed label on rear panel
Other number 4059 Scratched into paint of back panel


overall: 5 1/4 in x 16 1/2 in x 19 in


Object is a metal box with wood side-panels, offering a keyboard in front. Above the keyboard are buttons labeled "CONSOLE" and "RESET". There are vent holes along the top rear and the rear panel. The rear panel offers a power switch, a female DB-9 connector and both male and female DB-25 connectors.

The keyboard has a normal QERTY layout of brown keys and two groups of function keys colored gray. The central brown keys have lowercase letters on the key tops with colon/semicolon, comma, period, slash and ? keys in the usual locations. It differs from typical in that the apostrophe is shift-7, exclamation mark is in the bottom row over the period, and some of the shift-symbols in the top row are in unusual locations compared to current practice. From left to right the top row is (normal/shifted): 0/<, 1/>, 2/[, 3/], 4/$, 5/%, 6/_, 7/', 8/*, 9/(, =/).

The gray function keys on the left are TAB/CR, Plus (+), Implication (<=), Minus, Divide (./.), Multiply (X). The gray keys on the right are: SUPER, SUB, ANS/TERM, COPY, ERASE, MICRO/FONT, HELP, Quad([]), NEXT, EDIT, BACK, LAB, DATA and STOP.




Gift of Bob Morris

Lot Number