Meaning – The term module refers to the program unit that is discrete and identifiable with respect to compiling, combining with other units, and loading; for example, the input to or output from an assembler, compiler, linkage editor, or executive routine.

A computer module is a selection of independent electronic circuits packaged onto a circuit board to provide a basic function within a computer. An example might be an inverter or flip-flop, which would require two or more transistors and a small number of additional supporting devices. Modules would be inserted into a chassis and then wired together to produce a larger logic unit, like an adder.

Example of usage“Modules with discrete components continued to be used in specialist roles into the 1970s, notably high-speed designs like the CDC 8600, but advances in chip design led to the disappearance of the discrete-component module in the 1970s.”