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8 Cards in this Set

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  • Back
SRAM (Static RAM)
Usage: L1 and L2 Cache
Capabilities: Very fast; does not need to be refeshed

Notes: Very large, very expensive
DRAM (Dynamic RAM)
Usage: Main memory, expansion cards
Capabilities: Smaller and less expensive then SRAM

Notes: More complicated and slower then SRAM, this memory is considered outdated
FPM RAM (Fast Page Mode RAM)
Usage: Main memory, video memory
Capabilities: Does not need a row and column for each access; does not require special support

Notes: Slowest type of memory in modern PCs. This memory type is considered outdated.
EDO RAM (Extended Data Out RAM)
Usage: Main memory, video memory
Capabilities: One access to the memory can begin before the last one has ended

Notes: Does not work well at 75 MHz and beyond, same cost at FPM RAM
SDRAM (synchronous DRAM)
Usage: Main memory, video memory
Capabilities: Synchronized with the system clock and can read/write in burst mode at speeds of 100 MHz and higher.

Notes: Supports internal interleaving, allowing one access to begin halfway through a previous one
DDR SDRAM (double data rate synchronous DRAM)
Usage: Main memory, video memory
Capabilities: Doubles bandwidth by transferring data twice per cycle

Notes: More expensive than SDRAM
DRDRAM (direct Rambus DRAM)
Usage: Main meory, video memory
Capabilities: Based on a high speed 16-bit bus with a clock rate of 400 MHz

Notes: Proprietary to Intel and Rambus
SLDRAM (synchronous link DRAM)
Usage: Main memory, video memory
Capabilities: Uses a 64-bit bus running at 200 MHz clock speed transfering data twice on each cycle

Notes: Open standard