What is the difference between a DIMM and a SIMM?
DIMM stands for dual inline memory module, and SIMM stands for single inline memory module. The gold or tin pins on the lower edge of the front and back of a SIMM are connected, providing a single communication path between the module and the system. The pins on a DIMM are not connected, providing two communication paths between the module and the system, one in the front and one in the back. SIMMs and DIMMs are not interchangeable; they are different sizes and they install into different types of sockets.
