24-bit
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| Processors | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4-bit | 8-bit | 12-bit | 16-bit | 18-bit | 24-bit | 31-bit | 32-bit | 36-bit | 48-bit | 64-bit | 128-bit |
| Applications | |||||||||||
| 8-bit | 16-bit | 31-bit | 32-bit | 64-bit | |||||||
| Data Sizes | |||||||||||
| 4-bit | 8-bit | 16-bit | 32-bit | 64-bit | 128-bit | ||||||
| nibble byte octet word dword qword | |||||||||||
In computer architecture, 24-bit integers, memory addresses, or other data units are those that are at most 24 bits (3 octets) wide. Also, 24-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size.
The IBM System/360, announced in 1964, was an extremely popular computer system with 24-bit addressing and 32-bit general registers and arithmetic. The early 1980's saw the first popular personal computers, including the IBM PC/AT with an Intel 80286 processor using 24-bit addressing and 16-bit general registers and arithmetic, and the Apple Macintosh 128k with a Motorola 68000 processor featuring 24-bit addressing and 32-bit registers.
