Punch Cards used with a PDP-9 Minicomputer


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.

This group of cards is labeled: Last version using SC4020 plot routine. The cards have the data for a FORTRAN program with non-accession number 1990.3046.10. Theys are white with a green border along the top. A mark on the first card reads: $IBFTC CLAQR REF.

The SC4020 was a computer-controlled microfilm printer and plotter produced by the Stromberg-Carlson Corporation. It was one of the first devices sold specifically to visualize computer calculations.

Date Made: 1968

Maker: IBM

Location: Currently not on view

Place Made: United States: California, Santa Monica

Subject: Mathematics


See more items in: Medicine and Science: Computers, Computers & Business Machines, Punch Cards


Exhibition Location:

Credit Line: Gift of Paul Baran and W. L. Doyle

Data Source: National Museum of American History

Id Number: 1990.3046.07Catalog Number: 1990.3046.07Nonaccession Number: 1990.3046

Object Name: punched cards, set of

Physical Description: paper (overall material)Measurements: overall: 8.3 cm x 18.8 cm x 6 cm; 3 1/4 in x 7 3/8 in x 2 3/8 in

Guid: http://n2t.net/ark:/65665/ng49ca746ad-06e5-704b-e053-15f76fa0b4fa

Record Id: nmah_1378548

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