From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 2be7b8ed for ; Wed, 22 Jan 2020 17:54:48 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 9B0809C20A; Thu, 23 Jan 2020 03:54:47 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id E3DD19C200; Thu, 23 Jan 2020 03:54:23 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=bsdimp-com.20150623.gappssmtp.com header.i=@bsdimp-com.20150623.gappssmtp.com header.b="Trrz8uYk"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 40F3D9C102; Thu, 23 Jan 2020 03:54:21 +1000 (AEST) Received: from mail-qt1-f173.google.com (mail-qt1-f173.google.com [209.85.160.173]) by minnie.tuhs.org (Postfix) with ESMTPS id 759B19C102 for ; Thu, 23 Jan 2020 03:54:20 +1000 (AEST) Received: by mail-qt1-f173.google.com with SMTP id h12so267597qtu.1 for ; Wed, 22 Jan 2020 09:54:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=WiMCNelRGkVYbV/vY/zEozOMTlnS57F4FKVbs+376l4=; b=Trrz8uYkfkSlUEuRaPjLnGTZahunomqJCKO2x3hJhns/pvOIlf6OZ7KhFGbvY1cNs6 3XEjsdHB1+xob7FG54GVHp4d48VwAu/a/lUGAldTJ7cWeK/zFKwd11KD7WE5xck4S3L0 qqpGl0Ikj07f3A/4PCNs/uRD3Oq7MhGLkTkBdH0qZGvXdl3PCBaVZGX3F0vMdXvyZoSc RSXdyRJlqK7qIsdKWXkXVy9cxapDZOAOAlATTiy4NFMNaKhVJNqommHImjAYzuHrLFdG v2L/sYJkmrbXcrBoT3AtYr8jQ5qtDl3T9Xn1Km00R74zO7xlXZB353UFhMyxW/LQJnnC /Vqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=WiMCNelRGkVYbV/vY/zEozOMTlnS57F4FKVbs+376l4=; b=C2uMBvcgz2TTVj/4XbB6nnwOeowzS+8DD/UIcZNEQJlLtbp1QcSYvyMlyS7hbaRMcu sRY4/c+vIsfo06oq/kBrZy5/G06VL20C6ReW6UvOym20NRd8EPJIGXLemw/qzF6avKXI Hgi8U0iPgNOEypK/CG6ng12ZPxTQzebNJITSAyEK0ycaSHrwx4uwHN0dgXt+6KLLhFQP dqt+Jz+9hpv21tDydUeiTJtQU/ZmILFKSxK0lhmkEdKb0hxGOtQOdNBZ+oiDkwiWgtn8 vb7lLujwEabuhfRkUvnX3R/XHb3ZTI2pPM2e5caP+bkiOEs0jmSQHx2PjvIW0MWJvG3d krJw== X-Gm-Message-State: APjAAAWYHsm7pgbK7/Tu5cYPLdxXiyTnL2P2a8jtHFUAOad2qGVSzhtN 4b/Eowq2M5QOw0FQx7836CBD58JJC5NLIZzDt0AzNA== X-Google-Smtp-Source: APXvYqyEwi/fpFbhVWDRTUMZu0/MOqGIiaFeDuUCEoaruuCvDDlrY8YpLcEtHimMeGLBhNPZHyzbFq2ljas9rvZ1iJQ= X-Received: by 2002:ac8:38ae:: with SMTP id f43mr6355525qtc.291.1579715659352; Wed, 22 Jan 2020 09:54:19 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Warner Losh Date: Wed, 22 Jan 2020 10:54:08 -0700 Message-ID: To: Dan Cross Content-Type: multipart/alternative; boundary="000000000000b8ddbc059cbe365f" Subject: Re: [TUHS] Unix quix X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000b8ddbc059cbe365f Content-Type: text/plain; charset="UTF-8" On Wed, Jan 22, 2020 at 7:59 AM Dan Cross wrote: > Btw, the answer for #16 is `cagbef`: but `g` is not an option. I would > think the answer would be `cafbde`. Apparently in the original, option > '(d)' is missing; one imagines that was to trick the unwary who failed to > adequately read the question. > I think this is wrong: 16. Q: Sort the following into chronological order: a) PWB 1.2, b) V7, c) Whirlwind, d) System V, e) 4.2BSD, f) MERT. A: cagbef Whirlwind is a ringer. So the MERT ACM paper is 1975. The BSTJ is July/Aug 1978 (received Feb 1978). Somewhere I read (don't have a handy reference for it) that MERT ported V4 as a supervisor process which puts it in 1974 or so. In any event, this predates everything except Whirlwind which I can't find a paper for. PWB 1.2 is based on V6 + stuff. PWB 1.0 was released 1977, but we don't have an extant 1.2 tape to verify dates with, but 1978 wouldn't be unreasonable. We know 7th Edition was released Jan 1979 (PWB 2.0 was released, 1980 sometime) System V was released January 1983 4.2BSD was released September 1983 (4.1c was released in 1982 though :) So that would make the right answer c f a b d e Even DMERT for the 3B20 was released in January 1983 (or the IEEE paper for it was released then), so it can't be last. I also have questions about this: 81. Q: What was the first Unix network? A: spider You thought it was Datakit, didn't you? But Sandy Fraser had an earlier project. When did Alexander G Fraser's spider cell network happen? For that matter, when did Datakit happen? I can't find references to either start date on line (nor anything on spider except for references to it in Dr Fraser's bio). I can find references to Datakit in 1978 or so. I thought the answer was "ARPANET" since we had a NCP on 4th edition Unix in late 1974 or early 1975 from the University of Illinois dating from that time (the code in TUHS appears to be based on V6 + a number of patches). Warner > - Dan C. > > > On Wed, Jan 22, 2020 at 4:32 AM Rob Pike wrote: > >> The answers are up: >> >> https://commandcenter.blogspot.com/2020/01/unix-quiz-answers.html >> >> -rob >> >> --000000000000b8ddbc059cbe365f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=
On Wed, Jan 22, 2020 at 7:59 AM Dan C= ross <crossd@gmail.com> wrote= :
Btw, the answer for #16 is `cagbef`: but `g` is not an option. I wo= uld think the answer would be `cafbde`. Apparently in the original, option = '(d)' is missing; one imagines that was to trick the unwary who fai= led to adequately read the question.

I think=C2=A0this is wrong:
16. Q: =C2=A0S= ort the following into chronological order: a) PWB 1.2, b) V7, c) Whirlwind= , d) System V, e) 4.2BSD, f) MERT.
A:= cagbef
Whirlwind is a ringer.=

So the MERT ACM paper= is 1975. The BSTJ is July/Aug 1978 (received Feb 1978). Somewhere I read (= don't have a handy reference for it) that MERT ported V4 as a superviso= r process which puts it in 1974 or so. In any event, this predates everythi= ng except Whirlwind which I can't find a paper for.
PWB 1.2 i= s based on V6=C2=A0+ stuff. PWB 1.0 was released 1977, but we don't hav= e an extant 1.2 tape to verify dates with, but 1978 wouldn't be unreaso= nable.
We know 7th Edition was released Jan 1979 (PWB 2.0 was rel= eased, 1980 sometime)
System V was released January 1983
4.2BSD was released September 1983 (4.1c was released in 1982 though :)

So that would make the right answer c f a b d=C2=A0= e

Even DMERT for the 3B20 was released in January = 1983 (or the IEEE paper for it was released then), so it can't be last.=

I also have questions about this:

<= /div>
81. Q: =C2=A0What was the first Unix network?
A: spider
You thought it was Datakit, didn't you? But Sandy Fraser had a= n earlier project.

<= span style=3D"font-size:14.6667px">When did Alexander G Fraser's spider= cell network happen? For that matter, when did Datakit happen? I can't= find references to either start date on line (nor anything on spider excep= t for references to it in Dr Fraser's bio). I can find references to Da= takit in 1978 or so.

I=C2=A0 thought the answer was &qu= ot;ARPANET" since we had a NCP on 4th edition Unix in late 1974 or ear= ly 1975 from the University of Illinois dating from that time (the code in = TUHS appears to be based on V6=C2=A0+ a number of patches).

Warner


=C2=A0 =C2= =A0 =C2=A0 =C2=A0 - Dan C.


On Wed, Jan 22, 2020 at 4:32= AM Rob Pike <rob= pike@gmail.com> wrote:
--000000000000b8ddbc059cbe365f--