From: cowan@mercury.ccil.org (John Cowan)
Subject: [TUHS] terminal - just for fun
Date: Mon, 4 Aug 2014 14:28:52 -0400 [thread overview]
Message-ID: <20140804182852.GF28851@mercury.ccil.org> (raw)
In-Reply-To: <a2660c1c487bcd938c343c49f017bbf8.squirrel@webmail.yaccman.com>
scj at yaccman.com scripsit:
> capital letters, probably because you could
> get legibility with fewer dots that way and didn't have to worry about
> descenders.
According to legend, Teletype's own legibility studies showed the
opposite, that all lower case was far more legible in the presence poor
light, a weak ribbon, dirty paper, and other noise sourcess, but this was
overridden by management on the grounds that it would make it impossible
to spell "God" correctly. Untrue, but amusing.
> The model 33 Teletypes that were the most common terminal attached to Unix
> in the early days had only a single case, as I recall, being primarily
> used with paper tape with a character set closely related to the character
> set used on punched cards (although with some features that eventually
> become supported in ASCII).
The model 33 was released in 1963 and was one of the first devices to use
(the 1963 version of) ASCII. System/360 was originally supposed to use
it, but the effort to make ASCII-compatible printers and card readers
in time for its release was a failure.
The Unix treatment of LF as newline shows, however, that you folks had
model 37 TTYs; the model 33 still required CR+LF for newline.
--
John Cowan http://www.ccil.org/~cowan cowan at ccil.org
Schlingt dreifach einen Kreis vom dies!
Schliesst euer Aug vor heiliger Schau,
Denn er genoss vom Honig-Tau,
Und trank die Milch vom Paradies.
next prev parent reply other threads:[~2014-08-04 18:28 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-31 19:44 Tim Newsham
2014-07-31 22:59 ` Dave Horsfall
2014-08-02 13:30 ` random832
2014-08-01 9:00 ` Dario Niedermann
2014-08-01 15:13 ` Andy Kosela
2014-08-01 15:28 ` Milo Velimirović
2014-08-01 17:50 ` Mary Ann Horton
2014-08-01 17:59 ` Cory Smelosky
2014-08-01 19:59 ` Tim Newsham
2014-08-01 20:11 ` Dave Horsfall
2014-08-01 20:35 ` John Cowan
2014-08-02 1:49 ` Dave Horsfall
2014-08-02 3:27 ` Tim Bradshaw
2014-08-02 3:45 ` Greg 'groggy' Lehey
2014-08-02 9:24 ` Tim Bradshaw
2014-08-02 14:28 ` [TUHS] Lisp is a family quarrel John Cowan
2014-08-03 6:47 ` [TUHS] terminal - just for fun Dave Horsfall
2014-08-04 18:04 ` scj
2014-08-04 18:18 ` Tim Newsham
2014-08-04 18:29 ` John Cowan
2014-08-04 19:10 ` Tim Newsham
2014-08-04 19:13 ` Milo Velimirović
2014-08-04 19:21 ` Tim Newsham
2014-08-04 18:28 ` John Cowan [this message]
2014-08-05 13:13 ` arnold
2014-08-05 14:20 ` John Cowan
2014-08-05 14:46 ` arnold
2014-08-04 20:15 ` Jaap Akkerhuis
2014-08-04 20:39 ` Dave Horsfall
2014-08-02 4:28 ` Dave Horsfall
2014-08-02 4:46 ` Warner Losh
2014-08-02 13:22 ` Nemo
2014-08-02 3:37 ` Greg 'groggy' Lehey
2014-08-02 5:45 ` Dave Horsfall
2014-08-02 6:09 ` Greg 'groggy' Lehey
[not found] ` <20140802061214.GC13625@mercury.ccil.org>
2014-08-02 6:17 ` Dave Horsfall
2014-08-02 13:35 ` Bill Pechter
2014-08-02 14:04 ` Milo Velimirovic
2014-08-03 2:00 ` Greg 'groggy' Lehey
2014-08-02 14:30 ` John Cowan
2014-08-01 21:32 ` Dario Niedermann
2014-08-01 21:38 ` Warner Losh
2014-08-01 21:56 ` Dario Niedermann
2014-08-04 19:46 Doug McIlroy
2014-08-04 20:46 Norman Wilson
2014-08-04 21:07 ` Diomidis Spinellis
2014-08-06 2:56 Doug McIlroy
2014-08-06 6:45 ` arnold
2014-08-06 7:47 ` Dave Horsfall
2014-08-06 9:09 ` Jaap Akkerhuis
2014-08-06 20:43 ` Ronald Natalie
2014-08-06 21:40 ` Mary Ann Horton
2014-08-06 13:22 ` John Cowan
2014-08-06 13:44 ` Steve Nickolas
2014-08-06 15:26 ` Jeremy C. Reed
2014-08-06 16:15 ` Armando Stettner
2014-08-06 20:16 ` Jaap Akkerhuis
2014-08-06 20:32 ` Ronald Natalie
2014-08-06 16:37 ` John Cowan
2014-08-06 17:53 ` scj
2014-08-06 19:44 ` A. P. Garcia
2014-08-06 20:36 ` Ronald Natalie
2014-08-06 20:38 ` Ronald Natalie
2014-08-06 16:49 ` Milo Velimirović
2014-08-06 18:26 ` Mary Ann Horton
2014-08-06 18:48 ` Mary Ann Horton
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