Memory

The types of memory are
-DRAM (its the memory that has to be refreshed)
-SRAM (used for cache)
-SDRAM (Synced with the CPU 168pin)
-DDR (Data raising and falling edge 184pin)
-DDR2 (Like DDR but 240pin)
-Single Ranked DDR (single slot)
-Double Ranked DDR (double slot)

Processesors and Cooling

The CPU technologies are
-CACHE level 1,2, and 3
-VRM
-Spped (might not be the same)
-32/64 bit

There is 3 types of sockets
-PGA
-SPGA
-LGA (this is the most common)