45-bit computing

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In computer architecture, 45-bit integers, memory addresses, or other data units are those that are 45 bits wide. Also, 45-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on registers, address buses, or data buses of that size.

Examples

Computers designed with 45-bit words are quite rare. One 45-bit computer was the Soviet Almaz [ru] ("Diamond") computer.^[1]

References

^ Malashevich, B.M.; Malashevich, D.B. (July 3–7, 2006). "Modular: The Super Computer". In Impagliazzo, John; Prodyakov, Eduard (eds.). Perspectives on Soviet and Russian Computing. First IFIP WG 9.7 Conference, SoRuCom 2006. Petrozavodsk, Russia: Springer. p. 167. ISBN 978-3-642-22815-5.

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[1] Malashevich, B.M.; Malashevich, D.B. (July 3–7, 2006). "Modular: The Super Computer". In Impagliazzo, John; Prodyakov, Eduard (eds.). Perspectives on Soviet and Russian Computing. First IFIP WG 9.7 Conference, SoRuCom 2006. Petrozavodsk, Russia: Springer. p. 167. ISBN 978-3-642-22815-5.

[1]

Computer architecture bit widths
Bit
1 4 8 12 16 18 24 26 30 31 32 36 45 48 60 64 128 256 512 bit slicing
Application
8 16 32 64
Binary floating-point precision
16 (×½) 24 32 (×1) 40 64 (×2) 80 128 (×4) 256 (×8)
Decimal floating-point precision
32 64 128
v t e

Examples

See also

References