Main Memory
- Basic concepts
- memory banks (0,1): 4 to 64 Meg
- DRAM chips
- 9 x 1 256 K, 1 Meg, 4 Meg = 9 chips
- 2 x 4 + 1 = 3 chips (quadruple)
- SIMM and SIP (single in-line)
- SIMMs more common
- 3 chips cheaper
- organization: conventional, expanded and extended
- Additional references