EDO (Extended Data Out) RAM:
Increases performance up to 15 percent over DRAM by eliminating memory wait states, this means eliminating few steps to access memory.
Extends the availability of data in the memory as the read time does not expire until an additional signal is sent to the chip. Hence it is called an Extended Data Out RAM. In comparison a DRAM discharges its contents after read and must be refreshed before another read can occur.
Is more expensive than DRAM, but less expensive than SDRAM. EDO RAM comes in 72-pin SIMMs and sometimes even on 168-pin DIMMs (dual inline memory modules).
