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2-bit architecture

Architecture word sizes

1-bit
2-bit
4-bit
8-bit
12-bit
15-bit
16-bit
18-bit
20-bit
24-bit
32-bit
36-bit
64-bit
128-bit

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The 2-bit architecture is a microprocessor or computer architecture that has a datapath width or a highest operand width of 2 bits. These architectures typically have a matching register file with registers width of 2 bits. Very few 2-bit architecture CPUs were commercially marketed, most were bit-slice microprocessors.

2-bit microprocessors[edit]