[email protected] (Dave Wade) writes: > High Speed card readers read all columns of the card at the same time, > so they have 80 sensors, and read the card row-by-row, allowing much > faster reading. There is no reel of tape that has inertia that has to > be controlled on a stop. > A card deck is easy to edit, we used to have a hand punch for minor JCL > corrections. > A damaged card can often be recovered by manual copying.
re: http://www.garlic.com/~lynn/2017.html#37 Paper tape (was Re: Hidden Figures) http://www.garlic.com/~lynn/2017.html#38 Paper tape (was Re: Hidden Figures) because assemblies took so long, as undergraduate, I got quite adept at dup'ing columns in (12-2-9) TXT cards in 026 keypunch and multi-punching patches. -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
