> Bill wrote ,,, > > => Charlie, I think Hal said this, but IBM mainframes from the > => beginning were based on EBCDIC which does allow > upper/lower => case, but early keypunches didn't support > keying in lower case. > > EBCDIC was created in conjunction with the System 360 in > 1962-1964. It is an extension of BCDIC which is IBM's > equivalent of ASCII (which originally had only uppercase). > BCDIC is an extension of BCD which was a six-bit character > that supported 64 graphics; not enough for lowercase. So, > Bill, I am afraid you are incorrect.
You pre-date me, Hal <s>. I think of the 360 as the beginning, but accept your correction - there was a time before EBCDIC. Truth be told, I did originally learn Symbolic Programming (SPS) for the 1401 (with word marks, as I recall), but never actually did anything with it. The 360 came out around that time. Bill > > It's amazing that I can remember so much about what I did 40 > years ago but not what I had for breakfast. > > HALinNY _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
