Digital (company name, DEC)
Or to give it its full name, Digital Equipment Corporation.
The DEC provided tapes were folded in (maybe 8inch) intervals rather than rolled. When read, they naturally re-folded themselves.
I’d forgotten those folded paper tapes! Come to think of it, though, it’s probably about forty years since I last saw one.
The installation where I saw a PDP-8 had a PDP-15 and similar model (i.e. also newer than the PDP-8). The newer machines used magnetic tape for storage, but they still had a bootstrap loader on paper tape.
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It's what we used at GEC in the years around 1970 to do all tests on the X3 UK satellite in manufacture.
The demonstrator shows paper tape read and punched quite slowly on the side of the teleprinter, but he mentions a fast reader, I think he said x10 speed on reading. The DEC provided tapes were folded in (maybe 8inch) intervals rather than rolled. When read, they naturally re-folded themselves.
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