The term microprogramming is most often used to describe the technique of designing a digital computer control unit to execute a sequence of control words called microinstructions. These microinstructions are usually stored in a separate control memory, and each microinstruction usually specifies the machine control signals for one processor cycle time. Husson uses the term microprogramming in this hardware sense and also in a software sense to describe the act of programming the microinstruction sequences.

A glass delay line content-addressed memory system is described which was designed and constructed for use with a general -purpose computing system. A functional description of the system is given along with solutions to the major problems of implementation.