Single in-line memory module

A single in-line memory module (SIMM) is a small circuit board or substrate, typically about 10 x 2cm, with RAM integrated circuits or die on one or both sides and a single row of pins along one long edge.
==Description==
SIMMs are typically installed in groups, with their substrates at right-angles to the main circuit board (the motherboard). This configuration allows greater packing density than direct mounting of s (DIPs) of RAM on the motherboard. In 1993, one SIMM typically held one or four megabytes. By early 1997, one could hold 8, 16, or 32 MB.. 1997-01-05. These have since been superseded by dual in-line memory modules (DIMMs).. 1996-01-28.
===History===
The Macintosh Plus, introduced in January 1986, was the first model from Apple Computer to feature SIMM slots for memory upgrades.Mac Plus, Billie's Apple Macintosh Museum. Accessed 2021-12-06. Starting with the Power Macintosh 9500 in June 1995, Apple began switching to DIMM slots for memory upgrades.First of a New Breed by Jim Heid, Macworld p.94. 1995-08.
==References==
==External links==
*SIMM at Computer Hope (2020-08-02)
* at Wikipedia
Category:Memory
Category:Terms