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Created page with "Sideways ROM from [[KDS Electronics]]. There are two versions, one with 4-sockets, one with 5-sockets. All versions included a free "utility rom" (unknown what kind of utilities ..."
Sideways ROM from [[KDS Electronics]]. There are two versions, one with 4-sockets, one with 5-sockets. All versions included a free "utility rom" (unknown what kind of utilities it may have contained).
== Old version (7/1985) ==
4-socket ROM board, accepts 2K, 4K, 8K, 16K chips (ie. both 24pin and 28pin chips). According to the advert, it also supports chips slower than the recommended 200ns - the advert isn't too clear about this, but it sounds as if it can produce memory waitstates, via /WAIT signal or so.
== New version (4/1986) ==
5-socket ROM board, accepts 8K, 16K chips (ie. 28pin chips).
== Adverts ==
<gallery>
File:ACU8507-065.jpg|ACU Jul 1985
File:ACU8604-090.jpg|ACU Apr 1986
File:ACU8605-048.jpg|ACU May 1986
</gallery>
== Old version (7/1985) ==
4-socket ROM board, accepts 2K, 4K, 8K, 16K chips (ie. both 24pin and 28pin chips). According to the advert, it also supports chips slower than the recommended 200ns - the advert isn't too clear about this, but it sounds as if it can produce memory waitstates, via /WAIT signal or so.
== New version (4/1986) ==
5-socket ROM board, accepts 8K, 16K chips (ie. 28pin chips).
== Adverts ==
<gallery>
File:ACU8507-065.jpg|ACU Jul 1985
File:ACU8604-090.jpg|ACU Apr 1986
File:ACU8605-048.jpg|ACU May 1986
</gallery>
