FPM memory modules

FastPage Mode is acommon DRAM data-access scheme. Accessing DRAM is similar to finding information in a book. First, you turn to a particular page, then you select information from the page. Fast-page mode enables the CPU to access new data in half the normal access time, as long as it is on the same page as the previous request. At one time, FPM was the most common form of DRAM found in computers. FPM DRAM is faster than regular DRAM, but it still is pretty slow memory, with an access time of 120 ns. It was tweaked to 60 ns with time, but FPM was still too slow to work on the 66MHz system bus. For this reason, FPM RAM was replaced by EDO RAM. FPM RAM is not much used today due to its slow speed, but is almost universally supported.

72-pin SIMM

How Many Modules Do You Need
How Much Memory Do You Need