👉 In computer science, a non-microprogrammed (or "non-PC") program is a program that does not follow standard instruction set architecture (ISA) instructions. Unlike microprograms, which are machine-specific instructions specified in an assembly language or similar programming language, non-microprogrammed programs do not contain any instructions that are specific to the CPU's hardware and can be executed on any computer system. Non-microprogrammed programs are often used for tasks such as executing arbitrary code, implementing