First produced by

- Control Data Corporation (CDC 160A)

- Digital Equipment Corporation (PDP 1-11)

And then by many others... (3)

1. Martin Campbell-Kelly and William Aspray. Computer: A History of the Information Machine (Basic Books, 1996).

2. Paul E. Ceruzzi. A History of Modern Computing (MIT Press, 2000).

3. Copyright Notice. This figure is copyrighted material from (2, p192).

© 2000 Massachusetts Institute of Technology

It is to be used only for educational purposes. See, for example, UT Copyright Policy for further details about the Digital Millenium Copyright Act.