SO-DIMM

SO-DIMM is an abbreviation for Small Outline Dual In-line Memory Module and is a type of computer memory integrated circuit.

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They are a smaller alternative to a DIMM, being roughly half the size of regular DIMMs. As a result SO-DIMMs are mainly utilised in laptops, small footprint PCs (such as those with a Mini ITX motherboard) and high-end upgradable office printers.

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SO-DIMMs have 72 pins (supporting 32-bit data transfer) or 144 pins or 200 pins (both supporting 64-bit data transfer). This compares to regular DIMMs that have 168 pins and support 64-bit data transfer.

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Computer memory: Computer memory refers to devices that are used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer. Computers represent information in binary code, written as sequences of 0s and 1s. Each binary digit (or "bit") may be st...

Integrated circuit: An integrated circuit (IC) is a thin chip consisting of at least two interconnected semiconductor devices, mainly transistors, as well as passive components like resistors. As of 2004, typical chips are of size 1 cm2 or smaller, and contain millions of interconnected devices, but larger ones exist a...

DIMM: DIMM is an abbreviation for Dual In-line Memory Module, it is an assembly of several RAM chips on a single PCB for usage in personal computers. DIMMs began to replace SIMMs as the predominant type of memory module when Intel's Pentium processors were in the mainstream market....