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_MESSAGE,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 15812 invoked from network); 13 Mar 2023 15:41:33 -0000 Received: from minnie.tuhs.org (2600:3c01:e000:146::1) by inbox.vuxu.org with ESMTPUTF8; 13 Mar 2023 15:41:33 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id AAFAD413F5; Tue, 14 Mar 2023 01:41:28 +1000 (AEST) Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by minnie.tuhs.org (Postfix) with ESMTPS id 0C4CF413EA for ; Tue, 14 Mar 2023 01:41:22 +1000 (AEST) Received: by mail-ed1-x534.google.com with SMTP id x3so50387080edb.10 for ; Mon, 13 Mar 2023 08:41:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20210112.gappssmtp.com; s=20210112; t=1678722080; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=RmKY5IJ81+VnS9lsUVeAbu4RS5uLqKfE3dxXXlUQ+Po=; b=SVdDK9WIg8peGMIoGrWeX4J9YG4AXnBVm7hu7Sg5yQJP/XBgDAW40QxS/+B4v4O/Qm oiHmh9SC8q5eP35b8I6Mza1tDXH17+sx1uZCZqKcLDrgutqR64KGBE79P9v9zmjXU0W8 C/tESTX0KMO525Q4rA4EoHAMBnKW7WGmrXGxBiRSINWfQsNuUAb9K9cLliwwot+9geQS +gffuI1k6S2Llx6Svfft9ThmrtSuQzs33ezR6ZmWM4osWq9ETD3bGo6mBUEtVMT4oBa1 xMlrUtrUIsXLMf/WfhsWJqjloWitT1b24E6l6U6KKK5Wz+YNLfyBNSbiyCPjpsuVw6En zwsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678722080; 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=RmKY5IJ81+VnS9lsUVeAbu4RS5uLqKfE3dxXXlUQ+Po=; b=rWNeUOXAKWi880QjPiEK253+0sQQnKJj+SG60j8T12UvEOIsK8ch5O1ttQPKm93rS2 sLRB4VQsZTekleP6M/r8Q6Xo995pYm0a7jR4XHEcO/2U4tf4vW+xxNTkI/t9uttZPbdp aEZfh7BH3MQ/4TAftmbXRU36ArpXBvSVIKKlyFrYKdAPkjF58HJqhxHqY13Of6H/UDC9 K6OkdrDGpmbOScpotUHAAR7vQBSyw2YQP4FUu4atq84+bVxr1KoeWqisT/Uw3Jd51rAQ EBMhdLTNcyY37zXK9HJrRwf/R7B5vaQv191ugwfW1hJ9UegPvHFMRa3rZHhEKtAlROWI +gvg== X-Gm-Message-State: AO0yUKVhqenc4HCIGWzhqLuWXgCnFBZortkA+sFacewHZrvuiDsNNfRm e5SEh0IGcIWD8wVwmYme6oXnU5jidcrDAErrU+wI7Q== X-Google-Smtp-Source: AK7set+kd30EO30n6C55lo/liYMA/eNKjPZnP9J7W4n4XsQdcjN6Y39HHMXMk6JZyVNmLIoDFL5PiUjPvTXaiEe7UPw= X-Received: by 2002:a17:906:a05a:b0:8b2:23fb:dfd1 with SMTP id bg26-20020a170906a05a00b008b223fbdfd1mr18373154ejb.2.1678722080486; Mon, 13 Mar 2023 08:41:20 -0700 (PDT) MIME-Version: 1.0 References: <78FE1F5F-7408-4BB0-8D2E-62AA00465774@planet.nl> In-Reply-To: From: Warner Losh Date: Mon, 13 Mar 2023 09:41:09 -0600 Message-ID: To: Clem Cole Content-Type: multipart/alternative; boundary="00000000000048c56b05f6c9f1ff" Message-ID-Hash: 7EBIJDMHS5OZRGZIDQTA7ZCLBYBJTCN7 X-Message-ID-Hash: 7EBIJDMHS5OZRGZIDQTA7ZCLBYBJTCN7 X-MailFrom: wlosh@bsdimp.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: Paul Ruizendaal , "tuhs@tuhs.org" X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: virtual consoles / Alt-Fx List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --00000000000048c56b05f6c9f1ff Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Mar 13, 2023 at 9:24=E2=80=AFAM Clem Cole wrote: > FWIW I think Minix for the 8088 may have supported them - be > worth checking. > Minix 1.1 and 1.2 didn't have them. Unsure of later versions since they aren't packaged nicely for quick checking. Coherent didn't seem to have them, but it's kinda hard to tell for sure without more study. > My bet would be to look at ITS, WAITES and Twenex for the origin story. > TOPS-20 had a way to attach and detach from a PTY. But they didn't keep the state of the screen... programs did, but not the kernel. Warner --00000000000048c56b05f6c9f1ff Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=
On Mon, Mar 13, 2023 at 9:24=E2=80=AF= AM Clem Cole <clemc@ccc.com> wro= te:
FWIW I think Minix for the 8088 may have supported them - be worth=C2= =A0checking.=C2=A0=C2=A0

Minix 1.1 an= d 1.2 didn't have them. Unsure of later versions since they aren't = packaged nicely for quick checking.

Coherent didn&= #39;t seem to have them, but=C2=A0it's kinda hard to tell for sure with= out=C2=A0more study.
=C2=A0
My bet would be to look at ITS, WAITES = and Twenex for the origin story.=C2=A0

=C2=A0TOPS-20 had a way to attach and detach from a PTY. But they didn= 9;t keep the state of the screen... programs did, but not the kernel.
=

Warner
--00000000000048c56b05f6c9f1ff--