What is the difference between a DIMM and SODIMM (DRAM) - YouTube
Can DDR3 and SODIMM work together in the same laptop? - Quora
RAM [rigacci.org]
DDR2 SDRAM 4GB(2X2GB) 667 MHz PC2 5300S PC2 5300 1.8V 200 pin Non-ECC Unbuffered SODIMM Samsung Chip Memory RAM for Laptops with Intel and AMD Systems, and for iMac,MacBook,MacBook Pro and Mac
Synchronous dynamic random-access memory - Wikipedia