Technically speaking, these ARE ram expansion units. They interface
directly with the computers system bus, can perform DMA (direct memory
access) transfers, and most certainly contain RAM! What makes them
only a pseudo-ram expansion device is the fact that the ram they
provide is not directly accessible by the processor. The best that
can be done is that the REU memory is read from and written from as if
it were a very fast external device.
Model : 1700 Type : Ram expansion unit Resources : 128 kilobytes of extra memory Connection: C64/C128 Expansion port Notes :
Model : 1764 Type : Ram expansion unit Resources : 256 kilobytes of extra memory Connection: C64/C128 Expansion port Notes :
Model : 1750 Type : Ram expansion unit Resources : 512 kilobytes of extra memory Connection: C64/C128 Expansion port Notes :
Click here to return to the main pictures page
If you find anything in here you have questions or comments about, feel
free to leave me email right here.
To return to my home page, click here.