> I'll bet the source was talking about large contemporary storage units that > looked like drums or may have been called "drums" but were not actual 50's > drum memory with tubes and such. There was no rotating drum storage, the > media rotates in the PDP era. > > Take a look at any pdp 11 peripheral handbook, there would be drum memory > there if it was an official product.
Key words being "official product". Digital CSS department - Computer Special Systems, where all that weird stuff that was DEC engineered and built came from. Call it "low run semi custom". -- Will
