60-bit computing

In computer architecture, 60-bit integers, memory addresses, or other data units are those that are 60 bits wide. Also, 60-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size.

60 bit CDC 6600 introduced in 1964

Computer architecture bit widths
Bit
Application
Binary floating-point precision
  • 16
  • 32
  • 40
  • 64
  • 80
  • 128
  • 256
Decimal floating-point precision

Examples

Computers designed with 60-bit words are quite rare with Control Data Corporation (CDC) being perhaps one of the few or perhaps only manufacturer to use this size. Examples include the CDC 6000 series,[1] the CDC 7600, and the CDC Cyber 70 and 170 series.[2]

Emulator

Museum examples of 60-bit CDC machines exist. There also exists an emulator for the series which will simulate the CDC 60-bit machines on commodity hardware and operating systems.[2]

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References
  1. "CDC 6000 Hardware". 60bits.net. Central Memory. Archived from the original on 28 February 2019. Retrieved 28 February 2018.
  2. "Welcome to cray-cyber.org - home of Cray Research and CDC computer". Desktop Cyber. Archived from the original on 28 February 2019. Retrieved 28 February 2018.
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