What is bit slicing concept?

Answer 1

Taking a repetitive multiple bit logic circuit and grouping one or more bits of the complete circuit into individual packages, creating identical slices through the logic. Although this can be done with any logic circuit, it is most commonly associated with computer CPUs: ALU bit slices, sequencer bit slices, etc. Although the term is most closely related to certain microprocessors of the 1970s and 1980s, the design practice goes back to the earliest vacuum tube computers including the ABC (ALU was 30 one bit slices of adder/subtractors) and the ENIAC (each accumulator was 10 one decimal digit bit slices of ring counter). Even a simple four bit latch chip can be considered a bit slice of a larger latch.