Robert Wessel <robertwess...@yahoo.com> writes: > While that's mostly true, the 3174, amongst other things, kept a copy > of the terminal buffer in local storage (obviously for CUT mode > devices only), and only sent updates down the wire. So the extra > chattiness was largely a non-issue. That did have a significant > impact on file transfer programs running via a CUT mode device, which > would update the terminal's buffer directly, which led IBM to add a > configuration option (the somewhat infamous "File Transfer Aid Bit"), > which would cause the 3174 to copy the terminal buffer back when it > serviced a read command. > > But things like Entry Assists definitely worked on "real" CUT mode > terminals, which certainly still existed, even though many people were > using PC based terminal emulators instead.
los gatos lab vlsi tools group was doing lots of work with metaware's TWS and then two of the people did a mainframe Pascal ... which was used for a lot of internal VLSI tools and later morphed into vs/pascal product ... it was also used for the original mainframe tcp/ip product ... recently mentioned in this post: http://www.garlic.com/~lynn/2013l.html#54 in the early 80s one of the two people responsible for pascal, left and did a silicon valley startup to do a fancy 3270 controller clone ... which had a bunch of outboard functions in support of real dumb terminals. a big target was the TSO market place because of the really horrible TSO human factors and response ... and they were attempting to mask as much of it as possible. however, with the advent of ibm/pcs and 3270 terminal emulation ... that market imploded and the company disolved (it was only somebody like ibm's communication group that would have thought there was something more there). They somewhat got their investment money by showing large difference between TSO and CMS ... and claiming that they could make TSO close to CMS with enhanced functions outboard in a clone controller (customers would pay real money to make TSO semi-bearable). I periodically visited them in their digs while the controller was under development. other trivia ... after the 3270 clone controller company imblodes, he then goes on to be VP of software development at MIPS and when SGI buys MIPS ... he moves on to be the general manager of the SUN business unit that included JAVA. marginally related frame tale. circa 1990, object-oriented software was becoming the range in silicon valley ... Apple had PINK effort ... a new operating system implemented in object-oriented programming, SUN had similar SPRING effort. Apple spun off much of its object-oriented into Taligent which morphed into object-oriented program development environment with object classes grouped in frameworks. We were contacted and asked if we would consider taking over SPRING and turning it out as commercial product ... I've periodically claimed that there appeared to be some amount of overlap between SPRING and JAVA old email http://www.garlic.com/~lynn/2010.html#email960203 and this past post has part of the description of SPRING's "client-side interpreter" http://www.garlic.com/~lynn/2001j.html#32 past posts in this thread: http://www.garlic.com/~lynn/2013l.html#20 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#21 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#22 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#23 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#24 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#25 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#33 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#35 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#44 Teletypewriter Model 33 http://www.garlic.com/~lynn/2013l.html#46 Teletypewriter Model 33 -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
