Path: utzoo!utgpu!water!watmath!clyde!ima!johnl
From: johnl@ima.ISC.COM (John R. Levine)
Newsgroups: comp.arch
Subject: Re: PDP-10 user I/O (really: third-party operating systems)
Message-ID: <1045@ima.ISC.COM>
Date: 4 Jun 88 21:04:58 GMT
References: <3327@phri.UUCP> <125@daitc.ARPA> <23004@bu-cs.BU.EDU> <3330@phri.UUCP>
Reply-To: johnl@ima.UUCP (John R. Levine)
Followup-To: comp.misc
Organization: Not much
Lines: 17

In article <3330@phri.UUCP> roy@phri.UUCP (Roy Smith) writes:
>In article <23004@bu-cs.BU.EDU> bzs@bu-cs.BU.EDU (Barry Shein) writes:
>> Depending on exactly where you start counting from Unix is getting
>> close to 20 years old
>
>	More amazing is that troff (if you count its roots back to the old
>RUNOFF programs on TOPS-10) is probably even older than that.  ...

Both troff and RUNOFF are descendants of the runoff program for CTSS, which
makes them 25 years old, at least.  The ctss typset editor seems to finally
be dying out.  (If your line-at-a-time editor has input and edit modes,
toggles between them with a blank line, and has mode prompts like INPUT:
and EDIT:, that's typset.)
-- 
John R. Levine, IECC, PO Box 349, Cambridge MA 02238-0349, +1 617 492 3869
{ ihnp4 | decvax | cbosgd | harvard | yale }!ima!johnl, Levine@YALE.something
Rome fell, Babylon fell, Scarsdale will have its turn.  -G. B. Shaw