CHM Revolution

Date Introduced

1960; 1979

Manufacturer

International Business Machines Corporation (IBM)

Copyright Owner

© International Business Machines Corporation (IBM)

Location

United States

Keywords

Reference; Design; Manual

Object ID

102678081

Technicians and operators carried cards with commonly needed information culled from the many reference manuals for each computer. A “green card” in your shirt pocket announced that you were an assembly-language programmer.