12-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	60-bit	64-bit	128-bit
Applications
			16-bit				32-bit			64-bit
Data Sizes
nibble   octet   byte   word   dword   qword

In computer architecture, 12-bit integers, memory addresses, or other data units are those that are at most 12 bits (1.5 octets) wide. Also, 12-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size.

Possibly the best-known 12-bit CPU is the PDP-8 and its relatives, produced in various incarnations from August 1963 to mid-1990. Many ADCs (analog to digital converters) have a 12-bit resolution.

12 binary digits have 4096 (10000 octal, 1000 hexadecimal) unique combinations.

[edit] References

• DIGITAL Computing Timeline: 12-bit architecture

v • d • e CPU technologies Architecture ISA : CISC  · EDGE  · EPIC · MISC  · OISC · RISC · VLIW · ZISC · Harvard architecture · von Neumann architecture · 4-bit · 8-bit · 12-bit · 16-bit · 18-bit · 24-bit · 31-bit · 32-bit · 36-bit · 48-bit · 64-bit · 128-bit Parallelism Pipeline Instruction pipelining · In-order & out-of-order execution · Register renaming · Speculative execution Level Bit · Instruction · Superscalar · Data · Task Threads Multithreading · Simultaneous multithreading · Hyperthreading · Superthreading Flynn's taxonomy SISD · SIMD · MISD · MIMD Types Digital signal processor · Microcontroller · System-on-a-chip · Vector processor Components Arithmetic logic unit (ALU) · Barrel shifter · Floating-point unit (FPU) · Back-side bus · Multiplexer · Demultiplexer · Registers · Memory management unit (MMU) · Translation lookaside buffer (TLB) · Cache · register file · microcode · control unit · CPU clock Power management APM · ACPI (states) · Dynamic frequency scaling · Dynamic voltage scaling · Clock gating