<computer> A computer built by General Electric, the
successor to the GE-635, designed to provide the extra CPU
features required by the Multics project.
The GE-645 was designed in 1965 by John Couleur and Edward
Glaser at MIT. It had several security levels and
instructions for handling virtual memory. Addressing used
an 18-bit segment in addition to the 18-bit address,
dramatically increasing the theoretical memory size and making
virtual memory easier to support.
Design of the GE-645's successor, the GE-655, started in 1967.
(2006-09-24)
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