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=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FROM,HTML_MESSAGE,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 19558 invoked from network); 9 Apr 2021 17:03:08 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 9 Apr 2021 17:03:08 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 9FBC093FAE; Sat, 10 Apr 2021 03:03:06 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 7E60093D6B; Sat, 10 Apr 2021 03:02:36 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="LHnv+tOM"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id F04B793D6B; Sat, 10 Apr 2021 03:02:31 +1000 (AEST) Received: from mail-ot1-f52.google.com (mail-ot1-f52.google.com [209.85.210.52]) by minnie.tuhs.org (Postfix) with ESMTPS id 2647693D69 for ; Sat, 10 Apr 2021 03:02:31 +1000 (AEST) Received: by mail-ot1-f52.google.com with SMTP id w21-20020a9d63950000b02901ce7b8c45b4so6333110otk.5 for ; Fri, 09 Apr 2021 10:02:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Aq+MxsEglPAYWl+kjtdH8RDXE+JuSQjT5XUWpFLce/M=; b=LHnv+tOMctpoQHtj//z7sVZfAXf75AWTdSJftQ8Go8yGluNGgMZopSygfc/Rmh4rXF noIo2w538+M5nl9cTRAjepBPiWKEMl06xCggVHPwtiJIASR3FSjXn7g/yH1CJcIL3pcA g5PmOvEGdSOsl8Q6EnLSNJUEJQiWNMNRFLZgFSFm+wE/HAG3MuAje4NvZ49m8ctJKuuS K8cJznJYpZO9ag5kYBfVozGAqp/6luSK/Mr+Bdk5lNb9dRhJaq6S84mtJZQMaSJ51330 RApS8J0Qv6jiAf3W/THCbpjJ/1ThtR+wS6eGn2t9Sr2GBzOf5htuVMST/WyrcS9RK6z2 GkOA== 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=Aq+MxsEglPAYWl+kjtdH8RDXE+JuSQjT5XUWpFLce/M=; b=XjW4fGs6Qa2V0zx2s8bLzHwNNX6g9qg0XCwFXdfTG4KaXxQSVMlxc5yT93qgxo31eV jinjS3O8xcjH3511dPfLjmuFc4z1gXsDAMr3aZ+kwzStE6a9HWsqoZAw/eFXqwvxxdB+ zYeRaCiRU/06RdaU69jxNttschptsa5JDK+IeW4QiKoka+7cSxwnpna66X7sqmOOMcIH sX8nMban0LIeELH/Qb9mCTuoOT3QI9SPxA2Myjsri/GifVUKS62NSrSDqu+Vo/esWZ35 0Zso/WBXaukiPacL6C3RHvUZFm1enu7eEfIT+EQHuf2ZhbHs4d1G+lAxfLntcdbS7t/i PhTQ== X-Gm-Message-State: AOAM5305cYSbvdscapEZZuqS8nI6xkJGHhf1cWDWUGUXGOQjjT4DpYiy icZuucaGM2jK1Dfae9CwzPbLBzcJtd59KFM3ong= X-Google-Smtp-Source: ABdhPJymRi4atmtuU3Jy4NHNLEepaIeyfH7AI9uIsj6k05B726fUbTdHGcAdrDEsRMRyQg1fusw9Q4urjWtOhT7pMqw= X-Received: by 2002:a9d:3424:: with SMTP id v33mr3594238otb.137.1617987750371; Fri, 09 Apr 2021 10:02:30 -0700 (PDT) MIME-Version: 1.0 References: <0BD38829-5E79-4034-BCEF-0555434E52A4@planet.nl> In-Reply-To: <0BD38829-5E79-4034-BCEF-0555434E52A4@planet.nl> From: Dan Cross Date: Fri, 9 Apr 2021 13:01:54 -0400 Message-ID: To: Paul Ruizendaal Content-Type: multipart/alternative; boundary="0000000000001ca81f05bf8d2183" Subject: Re: [TUHS] SUN (Stanford University Network) was PC Unix 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" --0000000000001ca81f05bf8d2183 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Apr 9, 2021 at 11:35 AM Paul Ruizendaal via TUHS < tuhs@minnie.tuhs.org> wrote: > > On 09/04/2021 11:12, emanuel stiebler wrote: > You're comparing a z80 > SBC running CP/M? Or are you thinking of 68000 SBCs? > > Z80 CP/M machines were still competitive in 1981-1983 (Osborne, Kaypro) > > I've never seen a 68k SBC. Have I missed out something along the way? I= s > there a community for 68k SBC's? Kind regards, Andrew > There is an active community around DIY 68k SBCs these days. Some representative examples: https://www.eejournal.com/article/wallowing-in-68k-nostalgia/ https://www.ist-schlau.de https://www.bigmessowires.com/category/68katy/ https://github.com/74hc595/68k-nano http://mc68k.blogspot.com/2012_10_01_archive.html There are even a couple of fairly advanced 68030 design floating around: https://www.retrobrewcomputers.org/doku.php?id=3Dboards:sbc:gryphon_68030:s= tart https://www.retrobrewcomputers.org/doku.php?id=3Dboards:ecb:kiss-68030:star= t (I have a soft spot for 68k.) - Dan C. Well, Rob Pike designed one: http://doc.cat-v.org/bell_labs/blit/ > > I guess the original hacker scene for the 68K was around Hal Hardenberg= =E2=80=99s > newsletter: https://en.wikipedia.org/wiki/DTACK_Grounded > > The ready-made 68K SBC=E2=80=99s only arrived 1984-1985: > > https://en.wikipedia.org/wiki/Sinclair_QL (I think Linus Torvalds owned > one) > https://en.wikipedia.org/wiki/Atari_ST > https://en.wikipedia.org/wiki/Macintosh_128K > https://en.wikipedia.org/wiki/Amiga_1000 > > All these machines are rather similar at the hardware level - 68K > processor, RAM shared between CPU and display. Only the Amiga had a > (simple) hardware GPU. > > What set the SUN-1 apart was its MMU, which none of the above have. > > What influenced the timing was probably that Motorola made the 68K more > affordable by the mid-80=E2=80=99s. > > Paul > > --0000000000001ca81f05bf8d2183 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Fri, Apr 9, 2021 at 11:35 AM Paul Ruizendaal via TUH= S <tuhs@minnie.tuhs.org> = wrote:
> On 09/04/2021 11:12, emanuel stiebler wrote: > Yo= u're comparing a z80 SBC running CP/M? Or are you thinking of 68000 SBC= s?

Z80 CP/M machines were still competitive in 1981-1983 (Osborne, Kaypro)=C2= =A0

> I've never seen a 68k SBC. Have I missed out something along the w= ay? Is there a community for 68k SBC's? Kind regards, Andrew

There is an active community around DIY 68k SBCs = these days. Some representative examples:

https://github.com/74hc595/68k-nano

There are even a couple of fairly advanced 68030 design floating around:=


(I have a soft spot for 68k.)

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

Well, Rob Pike designed one: http://doc.cat-v.org/bell_labs/blit= /

I guess the original hacker scene for the 68K was around Hal Hardenberg=E2= =80=99s newsletter: https://en.wikipedia.org/wiki/DTACK_= Grounded

The ready-made 68K SBC=E2=80=99s only arrived 1984-1985:

https://en.wikipedia.org/wiki/Sinclair_QL (I think Linu= s Torvalds owned one)
https://en.wikipedia.org/wiki/Atari_ST
https://en.wikipedia.org/wiki/Macintosh_128K
https://en.wikipedia.org/wiki/Amiga_1000

All these machines are rather similar at the hardware level - 68K processor= , RAM shared between CPU and display. Only the Amiga had a (simple) hardwar= e GPU.

What set the SUN-1 apart was its MMU, which none of the above have.

What influenced the timing was probably that Motorola made the 68K more aff= ordable by the mid-80=E2=80=99s.

Paul

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