Single In-line Memory Module


single in-line memory module

[¦siŋ·gəl ¦in ‚līn ′mem·rē ‚mä·jəl] (computer science) SIMM

Single In-line Memory Module

(storage)(SIMM) A small circuit board or substrate, typicallyabout 10cm x 2cm, with RAM integrated circuits or die onone or both sides and a single row of pins along one longedge. Several SIMMs are mounted with their substrates atright-angles to the main circuit board (the motherboard).This configuration allows greater packing density than directmounting of, e.g. DIL (dual in-line) RAM packages on themotherboard. In 1993 one SIMM typically held one or fourmegabytes, by early 1997 one could hold 8, 16, or 32 MB.