Object Details
maker
IBM
Description
Flow charts could describe accounting machines as well as computers. This clear plastic rule is colored white around the edges. It has a grid of lines drawn in the background, with twelve symbols cut out. Across the top is a scale for 402-403 type bar spacing. Across the bottom are scales of mark sensing and card column numbers. Along the left is a scale of line spaces. Along the right is a scale of punching positions. The IBM 402 and IBM 403 were IBM accounting machines that sold from the late 1940s into the mid-1960s.
Location
Currently not on view
Credit Line
Gift of Joan P. Nichols
date made
ca 1960
ID Number
1996.3015.04
catalog number
1996.3015.04
nonaccession number
1996.3015
Object Name
Logic Template
Physical Description
plastic (overall material)
Measurements
overall: .1 cm x 19.2 cm x 8.4 cm; 1/32 in x 7 9/16 in x 3 5/16 in
See more items in
Medicine and Science: Mathematics
Flowcharting Templates
Science & Mathematics
Data Source
National Museum of American History
Subject
Mathematics
Link to Original Record
Record ID
nmah_690230