segment (normally the low segment) used by TOPS-10 and later adopted by Unix. Some KA10 machines, first at MIT, and later at Bolt, Beranek and Newman (BBN), were modified to add virtual memory and support for demand paging, and more physical memory.

The KA10 weighs about 1920 lb.

The 10/50 was the top-of-the-line uniprocessor KA machine at the time

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