DRAM - What is the difference between a SIMM and a DIMM?
- A SIMM (Single In-Line Memory Module) has a single line of connectors. Connectors on each side of the Board are the same. SIMMs are now obsolete.
- A DIMM (Dual In-Line Memory Module) has 2 lines of connectors. Connectors on each side of the board are not connected. The most popular types of DIMM are DDR, DDR2 and DDR3