Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.albasani.net!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail From: Anne & Lynn Wheeler Newsgroups: alt.folklore.computers,comp.sys.raspberry-pi Subject: Re: Is it a lost cause? Date: Mon, 04 Jul 2016 10:00:10 -0700 Organization: Wheeler&Wheeler Lines: 74 Message-ID: <87lh1hbap1.fsf@garlic.com> References: <20160613210220.7d9874b5@maxa-pc.cpe.bvcom.net> <440983857.489168038.520479.peter_flass-yahoo.com@news.eternal-september.org> <1531408310.489340818.426826.peter_flass-yahoo.com@news.eternal-september.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: mx02.eternal-september.org; posting-host="6a701f7a2f120c3c3ec794af16136f6c"; logging-data="11833"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+IkdZI+rbVtKiqQVURvvxnPa3gLJjEj+k=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.94 (gnu/linux) Cancel-Lock: sha1:acp0bM06XaT15pBCxXWTMI//PPk= sha1:G893DqOkHIYri/unl3s41CkpdHA= Xref: csiph.com alt.folklore.computers:166527 comp.sys.raspberry-pi:12449 Peter Flass writes: > So, Bitsavers probably has old JCL manuals. Go check. Among a number of > 360 systems I worked on I never saw paper tape. I guess it was more common > in Europe, for some reason. In the US it was common for typesetting, and I > would guess for driving CNC machines, and neither of these were (AFAIK) big > System/360 applications. More 1130s had paper tape, but All the ones I saw > were card only. TTY had paper tape ... univ. had a some 33 and one 35 http://www.eetimes.com/author.asp?section_id=36&doc_id=1319357 https://en.wikipedia.org/wiki/Teletype_Model_33 "the Model 33 ASR, (Automatic Send and Receive), which has a built in 8-level punched tape reader and tape punch;" "The Model 33 was one of the first products to employ the then new ASCII code. A companion Model 32 used the more established five-level Baudot code. Because of its low price and ASCII-compatibility, the Model 33 was widely used with early minicomputers." ... snip ... I don't remember seeing 1052 with 1054/1055 paper tape reader/punch (but common with tty) https://en.wikipedia.org/wiki/IBM_1050 some people at science center http://manana.garlic.com/~lynn/subtopic.html#545tech came out Jan1968 to univ. installing CP67, it had 1052 & 2741 terminal support ... including dynamic terminal identification ... it played games switching the SAD CCW to switch port-scanner type on line and some trivial transmission to determine terminal type. I added the TTY/ASCII to support the univ ascii tty devices ... extending the dynamic terminal type games with SAD CCW for ascii tty. I then wanted to setup single dialin phone number for all terminals (single "hunt group") ... but it didn't quite worked because they had taken short-cut ... while SAD CCW would change port-scanner type, the line speed was hard wired for each port. It worked for 1052 & 2741 because they operated at same line speed ... while TTY terminals were different line speed (requiring different dial in numbers for 1052/2741 and TTY). The dynamic terminal type still worked ... as long as the terminal was connected to port with correct line speed. this was part of motivation for the univ to start clone controller project, take an Interdata/3 programmed to emulate mainframe terminal controller ... and do dynamic terminal line speed, reverse engineer channel interface and build channel interface board for Interdata/3. Later this was enhanced with an Interdata/4 to handle the mainframe channel interface and cluster of Interdate/3s handling the port scanner functions. Four of us get written up as responsible for (some part of) mainframe clone controller business with Interdata is marketing the box. When Perkin/Elmer buys Interdata, it is continued to be sold under P/E logo. some past posts http://manana.garlic.com/~lynn/subtopic.html#360pcm note that IBM help originate ASCII http://www.bobbemer.com/ASCII.HTM http://www.bobbemer.com/FATHEROF.HTM http://www.bobbemer.com/HISTORY.HTM and tale of "the biggest computer goof ever", mainframe became EBCDIC (instead of ASCII) http://www.bobbemer.com/P-BIT.HTM and for other drift, recent thread in ibm-main group referencing connection between cp/67 and ms/dos http://manana.garlic.com/~lynn/2016d.html#103 Multithreaded output to stderr and stdout -- virtualization experience starting Jan1968, online at home since Mar1970