from
The Free On-line Dictionary of Computing (8 July 2008)
Extended Data Out Dynamic Random Access Memory
EDO DRAM
EDO memory
EDO RAM
Extended Data Out Random Access Memory
<storage> (EDO DRAM, EDO RAM) A type of {DRAM} designed to
access nearby memory locations faster than {FPM DRAM}.
Extended Data Out DRAM (EDO-DRAM) allows the data outputs to
be kept active after the CAS\ signal goes inactive, using an
additional signal OE\ to control the data outputs. This can
be used in {pipelined} systems for overlapping accesses where
the next cycle is started before the data from the last cycle
is removed from the bus.
EDO DRAM is primarily used with {Intel}'s {Pentium} processors
since with slower processors there is no significant
performance gain. To make use of the advanced features of EDO
an appropriate {chipset}, such as {Triton}, must be used. In
early 1995, EDO DRAM was available for computers from
{Micron}, {Gateway 2000}, and {Intel Corporation}; since then
other manufactures followed suit.
Note that in comparison to {Burst EDO} EDO is sometimes
referred to as "Standard EDO".
(1996-06-25)