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_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,HTML_MESSAGE,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 29045 invoked from network); 5 Mar 2023 20:44:11 -0000 Received: from minnie.tuhs.org (2600:3c01:e000:146::1) by inbox.vuxu.org with ESMTPUTF8; 5 Mar 2023 20:44:11 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 6FC454120B; Mon, 6 Mar 2023 06:44:06 +1000 (AEST) Received: from mail-ua1-x92a.google.com (mail-ua1-x92a.google.com [IPv6:2607:f8b0:4864:20::92a]) by minnie.tuhs.org (Postfix) with ESMTPS id 6256B41201 for ; Mon, 6 Mar 2023 06:44:00 +1000 (AEST) Received: by mail-ua1-x92a.google.com with SMTP id m5so5091853uae.11 for ; Sun, 05 Mar 2023 12:44:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1678049039; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=+T9fD0MqOuVqQJTE2nR65wgIb9dmf68WcwMZAsSwh1o=; b=bJnkiH2rkXyNp9GPQ3LmoHZhOfJvt/TQWuVoiX4Dl30sKiowOfwjo8h5xQtX+pzHKg K8EoiYlMcLzwKF8Sktxp5rzjSTV5079PQ90kMpymxntHAyB6nFxS07Fj+I9Cf2YIjtrL s9NQ9xWogsCoWPyFiGwC9Uq7hlMosIh1WPMjJ0Cddv4UOP9rWD0uWmU/e3RviAGWazll PHoynQrJTFqyPu3RL4Veil7kKQoNN3/MTHlrPoO4oVyx7mB9Kptr3rWkEYM86f7BaOJg BREI8etKl8sbUY3KR+MpL3K26hWzUkd7zVok1pShPdOdPhud7KmqETSPqGY7v/V2afbR 2SOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678049039; 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=+T9fD0MqOuVqQJTE2nR65wgIb9dmf68WcwMZAsSwh1o=; b=G2HkU+y+ddLAKbd1Uz7D5DHyVKvAij69ZKQH6Dcym+pGfr5ygXBXMCTPB6ouFYOOqU kIeidu/wqRpjGhCuT4GK/OaUmnMX5NzoO6+moWRPb28LRB0Q6+8uwoVSCiSBepaeeJH0 LujnyG5xeN1Utk7YtZXDc9XvYO4hfRuMSF4vo1xrudaL5ziRpm1zhv/6RYxNe0gtbaa8 oVcf5Bz4K+0Sm/pG1xO4vBy1HuVEPPsSnluCxkDt2wrjl8jGNHe8ClA9Ctfn/ww5erql 06kh3mVVMQdj0DFzEkxGzVTqMyjbkEfCpq9WgAHcIiLsWEushAir4fsfPm00MweFFUjK jcrg== X-Gm-Message-State: AO0yUKWl6AVarJAEsOzGjoXcGJQ1x91jelnEXNXh3eiGMpL1jmQIPv1g J1jVToMWAM9Nipx7Zgcqd+StJYhhYKaiVp+tsdfJNPie X-Google-Smtp-Source: AK7set+tulY4K4oB/F14otaK7+SreGufecO1aescYklkzTU7+/+W65FosYCHJCUKac99txSGinGW2dHkBFS05sG5PUk= X-Received: by 2002:ab0:4a05:0:b0:68b:6325:4061 with SMTP id q5-20020ab04a05000000b0068b63254061mr5850198uae.0.1678049039214; Sun, 05 Mar 2023 12:43:59 -0800 (PST) MIME-Version: 1.0 References: <20230305185202.91B7B18C08D@mercury.lcs.mit.edu> In-Reply-To: <20230305185202.91B7B18C08D@mercury.lcs.mit.edu> From: Rob Pike Date: Mon, 6 Mar 2023 07:43:48 +1100 Message-ID: To: Noel Chiappa Content-Type: multipart/alternative; boundary="000000000000e5eec905f62d3c35" Message-ID-Hash: ASGPBL5CSKXWCRSTZG7JC4QQIXR57ZUI X-Message-ID-Hash: ASGPBL5CSKXWCRSTZG7JC4QQIXR57ZUI X-MailFrom: robpike@gmail.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: tuhs@tuhs.org X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Origins of the frame buffer device List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --000000000000e5eec905f62d3c35 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable There was a Three Rivers Graphic Wonder (a vector display) on the University of Toronto PDP-11/45 in 1975, maybe 1974. There wasn't a frame buffer until Dave Tennenhouse built one around 1978 - not sure of that date, maybe a little later . 256x256, 8 bits per pixel, or 65kilobytes, the full data address space of the PDP-11. -rob On Mon, Mar 6, 2023 at 5:52=E2=80=AFAM Noel Chiappa wrote: > > From: Kenneth Goodwin > > > The first frame buffers from Evans and Sutherland were at Universit= y > of > > Utah, DOD SITES and NYIT CGL as I recall. > > Circa 1974 to 1978. > > Were those on PDP-11's, or PDP-10's? (Really early E+S gear attached to > PDP-10's; '74-'78 sounds like an interim period.) > > Noel > > --000000000000e5eec905f62d3c35 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
There was a Three Rivers Graphic Wonder (a vector display) on the= University of Toronto PDP-11/45 in 1975, maybe 1974. There wasn't a fr= ame buffer until Dave Tennenhouse built one around 1978 - not sure of that = date, maybe a little later
.
256x256, 8 bits per pixel, or 65kilobytes, the ful= l data address space of the PDP-11.

-rob


On Mon, Mar 6, 2023 at 5:= 52=E2=80=AFAM Noel Chiappa <j= nc@mercury.lcs.mit.edu> wrote:
=C2=A0 =C2=A0 > From: Kenneth Goodwin

=C2=A0 =C2=A0 > The first frame buffers from Evans and Sutherland were a= t University of
=C2=A0 =C2=A0 > Utah, DOD SITES and NYIT CGL as I recall.
=C2=A0 =C2=A0 > Circa 1974 to 1978.

Were those on PDP-11's, or PDP-10's? (Really early E+S gear attache= d to
PDP-10's; '74-'78 sounds like an interim period.)

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Noel

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