From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HTML_FONT_LOW_CONTRAST,HTML_IMAGE_ONLY_32,HTML_MESSAGE, MAILING_LIST_MULTI,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 15929 invoked from network); 17 Jul 2023 22:14:12 -0000 Received: from minnie.tuhs.org (2600:3c01:e000:146::1) by inbox.vuxu.org with ESMTPUTF8; 17 Jul 2023 22:14:12 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id A414842A30; Tue, 18 Jul 2023 08:14:06 +1000 (AEST) Received: from mail-vk1-xa2a.google.com (mail-vk1-xa2a.google.com [IPv6:2607:f8b0:4864:20::a2a]) by minnie.tuhs.org (Postfix) with ESMTPS id 1427E42A20 for ; Tue, 18 Jul 2023 08:13:48 +1000 (AEST) Received: by mail-vk1-xa2a.google.com with SMTP id 71dfb90a1353d-4812fc6b41dso1671740e0c.3 for ; Mon, 17 Jul 2023 15:13:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ccc.com; s=google; t=1689632027; x=1692224027; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=hOu7K/vg408NctdqRN3Anrx7Amp81uywzLFp0J+xypk=; b=Fxwl6/Vn4mMlzeN9EMq+WGqEl5RytYokGnPkqaCz0+HOKEitydeNdZMq9ArDHNsqVE BoyP3eKJJecrJ7vAHafGYz1mCuTrcC3LV2xYcYxt2a49n/uNhqUZ5cICRkHmInJp99ak IYyTSwaSnodu8yZkzKR8pxGZpd6M6tYVvPsEk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689632027; x=1692224027; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=hOu7K/vg408NctdqRN3Anrx7Amp81uywzLFp0J+xypk=; b=g+3GhDu4sXd2kk9oLYMvpWhC0pej9Lak3Y3X0+PmHMyaNO11TPpAQOYWTfhGo9rAzp PBPPMigVgebaAI2Tb4rCD2baeKGUEwMkcsuZMDqvirFlkyRAVx1e2ROrem3axWJ+2lVS 8C2XrFWzm72OMeV7b4nc0scK/VqhwDIlWOoKhsQxxL1F3/ETBo0G9GNZ6cscrqOBm33T AEh4E5CsFkELjVrV4LR0xL3yve1C14j1PLVKZfVZcLgNvlnrmZYDsUg6DzniZv99Prme E1qkF8lAkQAYIz00XtYIpLGavuxx3sfLV4eUZB434VZwFNtfuZwRUVkNqbT8lgG6zGdG 8fnw== X-Gm-Message-State: ABy/qLaZcvZVEMQPEDpTmn9n69nF5yzfVWAbdGN7pW+sLKYwNydHOrYU dI93pobMKGNnc5J8xT2ufpzgr9m0J1L8gC/1Fr+RrA== X-Google-Smtp-Source: APBJJlH8uHrYD5yAA5EQTADzc3oWgvFBvA8BoDdue+lDD8iy85pIPBpPFI9oVmhf1CxEM+Sde6IG8PCQJPLkJml5C5Y= X-Received: by 2002:a1f:c1c9:0:b0:481:30aa:e9e6 with SMTP id r192-20020a1fc1c9000000b0048130aae9e6mr628225vkf.12.1689632026646; Mon, 17 Jul 2023 15:13:46 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Clem Cole Date: Mon, 17 Jul 2023 18:13:10 -0400 Message-ID: To: Henry Bent Content-Type: multipart/alternative; boundary="000000000000bff3760600b61c1f" Message-ID-Hash: FDQDPZK3MHRYPOIXEGGN7WYUMB2HT7V6 X-Message-ID-Hash: FDQDPZK3MHRYPOIXEGGN7WYUMB2HT7V6 X-MailFrom: clemc@ccc.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: The Eunuchs Hysterical Society X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Research UNIX PDP 11/45 List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --000000000000bff3760600b61c1f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Henry - the infamous Ken and Dennis picture: https://www.bell-labs.com/usr/dmr/www/ken-and-den.jpg show the 11/20's display. Their is a console display is hidden behind the right most ASR-33 [the console for the 11/20, I think], and Ken is typing to another processor - it's either an 11/40 or 11/45, given the parts of the bezel shown in the picture. The picture also shows 2 RK's, 2 DEC Tape and a Paper Tape read/punch, and the Tek display on the table. The Fifth Edition tape the low.s and conf.c list an 11/40 with drivers for the RK05, KL, DC serial, and the PPT unit. The Sixth edition is the first time we see mch40 and mch45. There is also a rkunix, rpunix and hpunix on the distribution tape. The l.s file shows KL, DEC Tape, 9-Track and RP04 drivers (but no DC-11s). We also see Ken's "sysfix" to deal with the separate I/D space. So ... I'm would have suspected that the first 11/45 had an RP04 as well as at least one RK05, a TM-11 with a 9-track, and the DEC Tape unit. The amount of memory is, of course, unknown. It was pretty expensive in those days, but I would have expected they would have pushed it to the max [256K]. =E1=90=A7 On Mon, Jul 17, 2023 at 3:44=E2=80=AFPM Henry Bent = wrote: > Hello all, > > I asked this question in a different thread but it may have been bogged > down in other discussion so I figured it was worth asking again. > > What was the hardware configuration of the 11/45 that Research used to > implement early UNIX? This would be circa late 1972/earlty 1973. I have > found numerous references to it being an early production 11/45, and I > assume that it had an RK05, but I cannot find any details about things li= ke > memory size and other peripherals. > > Since the only extant sources are for V1, which was as I understand only > run on a singular 11/20, and V5 by which time UNIX had spread it doesn't > seem possible to infer a hardware configuration from existing code. > > -Henry > --000000000000bff3760600b61c1f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Henry - the infamous Ken and Dennis picture:=C2=A0https://www.be= ll-labs.com/usr/dmr/www/ken-and-den.jpg show the 11/20's display.= =C2=A0 Their is a console=C2=A0display is hidden behind the right most ASR-= 33 [the console for the 11/20, I think], and Ken is typing to another proce= ssor - it's either an 11/40 or 11/45, given the parts of the bezel show= n in the picture.=C2=A0 =C2=A0The picture also shows 2 RK's, 2 DEC Tape= and a Paper Tape read/punch, and the Tek display on the table.
The Fifth Edition tape the low.s and conf.c list an 11/40 with dr= ivers for the RK05, KL, DC serial, and the PPT unit.=C2=A0 The Sixth editio= n is the first time we see mch40 and mch45.=C2=A0There is also a rkunix, rp= unix and hpunix=C2=A0on the distribution tape.=C2=A0 The l.s file shows KL,= DEC Tape, 9-Track and RP04 drivers (but no DC-11s).=C2=A0 =C2=A0We also se= e Ken's "sysfix" to deal with the separate=C2=A0I/D space.

So ... I'm would have suspected that=C2=A0the fi= rst 11/45 had an RP04 as well as at least one RK05, a TM-11 with a 9-track,= and the DEC Tape unit. The amount=C2=A0of memory is, of course, unknown.= =C2=A0 It was pretty expensive in those days, but I would have expected the= y would have pushed it to the max [256K].=C2=A0=C2=A0
3D""=E1=90= =A7

On Mon, Jul 17, 2023 at 3:44=E2=80=AFPM Henry Bent <henry.r.bent@gmail.com> wrote:
Hello all,

I asked this question in a different t= hread but it may have been bogged down in other discussion so I figured it = was worth asking again.

What was the hardware conf= iguration of the 11/45 that Research used to implement early UNIX?=C2=A0 Th= is would be circa late 1972/earlty 1973.=C2=A0 I have found numerous refere= nces to it being an early production 11/45, and I assume that it had an RK0= 5, but I cannot find any details about things like memory size and other pe= ripherals.

Since the only extant sources are for V= 1, which was as I understand only run on a singular 11/20, and V5 by which = time UNIX had spread it doesn't seem possible to infer a hardware confi= guration from existing code.

-Henry
<= /div>
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