24-bit
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| Processors | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-bit | 4-bit | 8-bit | 12-bit | 16-bit | 18-bit | 24-bit | 31-bit | 32-bit | 36-bit | 48-bit | 60-bit | 64-bit | 128-bit |
| Applications | |||||||||||||
| 8-bit | 16-bit | 32-bit | 64-bit | ||||||||||
| Data sizes | |||||||||||||
| bit nibble octet byte | |||||||||||||
| halfword word dword qword | |||||||||||||
| IEEE floating-point standard | |||||||||||||
| Single precision floating-point format (32-bit) Double precision floating-point format (64-bit) Quadruple precision floating-point format (128-bit) | |||||||||||||
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.
Notable 24-bit machines include the ICT 1900 series and the Harris H series.[1]
The IBM System/360, announced in 1964, was a popular computer system with 24-bit addressing and 32-bit general registers and arithmetic. The early 1980s 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.
The eZ80 is a microprocessor and microcontroller family with 24-bit registers and therefore 24-bit linear addressing that is binary compatible with the 8/16-bit Z80.
The 65816 is a microprocessor and microcontroller family with 16-bit registers and 24-bit bank switched addressing. It is binary compatible with the 8-bit 6502.
[edit] References
- ^ Savard, John. "Real Machines with 24-bit and 48-bit words". http://www.quadibloc.com/comp/cp0303.htm. Retrieved 2011-02-11.
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