DIMM and SIMM are two major types of random-access memory standards for personal computers. DIMM is an acronym for "dual in-line memory module," while SIMM stands for "single in-line memory module." ...
A earlier memory chip module that was similar to a single in-line memory module (SIMM), but used pins rather than edge connectors. A single in-line package (SIP) was sometimes called a "single in-line ...