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 ...

A Single In-line Memory Module (SIMM) is a type of memory module containing Random Access Memory (RAM) which was used in computers from the early 1980s to the late 1990s (think 386, 486 ...