The 1702A was the first practical EPROM that I remember, and it was 2K bits or 256 x 8. It was certainly among the first parts you could program on the Data I/O programmer. The only competitor at the time was bipolar fuse programmable parts at 256 x 8. Of course they were not erasable, and 1971 was a long time ago, the memory dims after all those years.Thought more from a collectors point of view.
Heard somewhere that the 1702A was the first EPROM ever, can that be true?