Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Bob Eager Newsgroups: alt.sys.pdp11 Subject: Re: Any interesting PDP/TECO photos out there? Date: 13 Nov 2024 09:00:19 GMT Lines: 21 Message-ID: References: <8327c51b-7eb9-08a4-3529-3a76bbd1b4a6@googlemail.com> <8734jvvkpv.fsf@nightsong.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net IqJyKG2VQgJdvUdF71vkdQJb1ITcdEcdG39ERPxxu/UciXzvFF Cancel-Lock: sha1:qBpw4IHyPMoPkcUZ/+N/bn/5ry4= sha256:rPVZ4jciOxoc8r6dBAOdGq1IG9PnvG0Isky1UHU/KJE= User-Agent: Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2) Xref: csiph.com alt.sys.pdp11:5589 On Tue, 12 Nov 2024 20:09:00 -0800, Paul Rubin wrote: > I think the early versions of TECO were designed for use predominantly > with quite slow printing terminals (10 cps Teletypes or even slower), > and its command set grew around that. You would enter a long editing > command specifying a complicate sequence of edits and cursor motions, > and TECO would execute them without having to noisily and slowly retype > the lines being edited. The Unix editor "ed" was sort of ok with a 30 > cps printing terminal and reasonably nice with 120 cps. But it would > have been painful at 10 cps because of retyping the line so often. Which was precisely why 'ed' does not print unless asked to. It's also part of the reason why UNIX commands are silent and short. I remember using UNIX on a 10cps terminal! -- Using UNIX since v6 (1975)... Use the BIG mirror service in the UK: http://www.mirrorservice.org