Punch Cards used with a PDP-9 Minicomputer

Punch Cards used with a PDP-9 Minicomputer

Usage conditions apply
In the mid-1960s, the Computer Science Department at RAND Corporation turned its attention to developing computer graphics. A set of programs written in the programming language FORTRAN for the PDP-9 minicomputer were used to plot contour lines useful in determining the line of sight for microwave radiation emitted from a given point on a map.
Groups of the punch cards are not numbered but some are grouped by black marks on the edge. The cards have the data for a FORTRAN program with non-accession number 1990.3046.10. The cards are white with a pink, green or no border on the top. A mark on the first card reads: 8258, CLAF6, D7300, 04M, 100CD, 150P, C.
Currently not on view
Object Name
punched cards, set of
date made
Place Made
United States: California, Santa Monica
Physical Description
paper (overall material)
overall: 8.3 cm x 18.8 cm x 8.1 cm; 3 1/4 in x 7 3/8 in x 3 3/16 in
ID Number
catalog number
nonaccession number
Credit Line
Gift of Paul Baran and W. L. Doyle
See more items in
Medicine and Science: Computers
Computers & Business Machines
Punch Cards
Data Source
National Museum of American History
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