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1-bit computer architecture is an instruction set architecture for a processor that has datapath widths and data register widths of 1 bit (1/8 octet) wide.
An example of a 1-bit architecture actually marketed as a CPU is the
Motorola MC14500B Industrial Control Unit. There are also several design studies for 1-bit architectures in academia, and corresponding 1-bit logic can also be found in programming. [1 ]
calculators use a bit serial design. [ ] citation needed
Other examples of 1-bit architectures are
programmable logic controllers.
A typical sequence of instructions from a program for a 1-bit architecture might be:
load digital input 1 into a 1-bit register;
OR the value in the 1-bit register with input 2, leaving the result in the register; write the value in the 1-bit register to output 1.
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