Complex sentence: Microcode is a layer of lowest-level instructions involved in the implementation of machine code instructions in many computers and other processors; it resides in a special high-speed memory and translates machine instructions into sequences of detailed circuit-level operations.
Split into simpler sentences: Microcode is a layer of lowest-level instructions involved in the implementation of machine code instructions in many computers and other processors. It resides in a special high-speed memory and is composed of sequences of detailed circuit-level operations.