On 4 Jan 2010 15:22:46 -0800, in bit.listserv.ibm-main you wrote: >In <[email protected]>, on 01/03/2010 > at 11:28 AM, Clark Morris <[email protected]> said: > >>JCL was designed for OS360 on a 256K real machine (the original design >>point for PCP was 64K). > >256 KiB? We ran OS/360 PCP on a 128 KiB machine[1]. With 256 KiB we were >able to run MFT II for production. > >> Virtually all of the printers were upper case >>only and at least in my shop it was a struggle to get a printer that >>printed the special characters correctly > >Why? The TN train was available[2] for the 1403-N1. Did you have only 1443 >printers or 1403 printers older than the Nancy One?
The trains were available. The management desire for the fastest print speed dictated the 48 character chain. I think that it was the 1980's before we got the QNC chain which had 60 characters where 45 of them were in all of the sets (5 I think) and 15 were scattered 3 to a set. The name and exact details are subject to hazy recollection. In any case the problems with obtaining the chains were management objectives and values, not technical ones. > >>Lower case was out of the question. > >Why? Low print speed, no programs to take advantage of it and no perceived business value. > >[1] Well, we did IPL on a 64 KiB machine, but not for production. > >[2] Yes, it was slower than AN, HN or PN. > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
