Do you mean register size? BUS size? https://en.wikipedia.org/wiki/1-bit_architecture https://en.wikipedia.org/wiki/1-bit_architecture And check out the box

Do you mean register size? BUS size? https://en.wikipedia.org/wiki/1-bit_architecture https://en.wikipedia.org/wiki/1-bit_architecture And check out the box in the upper right area that is titled "Computer architecture bit widths" There are pages for: 1 2 4 8 12 16 18 24 26 28 31 32 36 48 60 64 128 256 512 Also check out Forth CPUs And why stick to binary? https://en.wikipedia.org/wiki/Ternary_computer https://en.wikipedia.org/wiki/Ternary_computer