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 32193 invoked from network); 3 Nov 2022 17:03:53 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 3 Nov 2022 17:03:53 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 8B8E64014F; Fri, 4 Nov 2022 03:03:47 +1000 (AEST) Received: from mail-ua1-f49.google.com (mail-ua1-f49.google.com [209.85.222.49]) by minnie.tuhs.org (Postfix) with ESMTPS id 065244010E for ; Fri, 4 Nov 2022 03:03:44 +1000 (AEST) Received: by mail-ua1-f49.google.com with SMTP id e26so1288407uaa.7 for ; Thu, 03 Nov 2022 10:03:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ccil-org.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=FT4oavpXf8yNksikskCcfAF06M/zZT8iitE7khQYTgs=; b=gZgbm+JbwTJNp2TN4gcxxaz4Tts7LwInPEnR3abe6Ahovq7O5lW/Mhzn9w3B1oOXMM LjESoBlro7v7qUNJsyUkam4K+CxzKODFLf++X3zu3XopEL3RA8KjdO4JssQS+64czFAD XcfQfAlJ3XKXEvfCm6f+P5+0ZSFWDaCbGVFZmGy3J2M7I0fjg9OAF5BI1VZrJ0qAcCH9 ZM7BCjWVyV9NolYVQZcsDgqw+wkbKd8gzUTTIeMf7FwWmQCdEF5B58XwFXPwBsLB02NF n32AW7PIZzT9AveflQkmpSZdfFcjvuvha8F5ZwTj6h/W9S5B6Zg0VWKqD9M1WBXKWSgZ PTKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=FT4oavpXf8yNksikskCcfAF06M/zZT8iitE7khQYTgs=; b=f4iP2ASNK2naJa2NdraAjN2u3IBoSPcDLc6Bv90Mta+WFuJRGtXDkez9lVyjRz0/W+ rM/4/hPc1TspMqxd0grbO1n8FPz6WzBSy699BBLXDRTNr1kmuvUW+u0UV4+kjzf/QZCj wAQ3s/yCyl28yGM5V0Rlg/WcPE92KxGGhMUjLno/gjMzye/+5LVS01ppDsxOdbaIkiy2 o1lrVWa70UdU+N8eR1Hy5vF3DoJ+891p/Pde2eZouQXYhKDDzv2T27ZWZ2hzihfkkvZL hVh7U7/WF3OpLLmKR3ruKpAaY+IfTmgT+mMT5kOIZvpwYROrSdCdpwitmXvW+Asawsmt LPpA== X-Gm-Message-State: ACrzQf0nXfmA0LNFHgyZrTKFz9jvOFK7gkfk993AmHzl/8JsQyBmE4eS bWwPkvJfvfuhA9H6PWE9FxXBdfdesRYNXtMWZRMVS9GbQw8= X-Google-Smtp-Source: AMsMyM5KS7tijuL2EZm0Rs5U1kk6Td9tQqxkCYvykMiplLI8ix9w3glCRMCsWJm3fDoiMcBptIGjXeomEXgiyRHjOuE= X-Received: by 2002:ab0:8d1:0:b0:3ed:654e:c6ba with SMTP id o17-20020ab008d1000000b003ed654ec6bamr7676398uaf.56.1667494963129; Thu, 03 Nov 2022 10:02:43 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: John Cowan Date: Thu, 3 Nov 2022 13:02:31 -0400 Message-ID: To: Paul Winalski Content-Type: multipart/alternative; boundary="000000000000f1486305ec93ece7" Message-ID-Hash: 3KLQHGTJO7LVUR5FXON2W4GCJPUSZDFU X-Message-ID-Hash: 3KLQHGTJO7LVUR5FXON2W4GCJPUSZDFU X-MailFrom: cowan@ccil.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: steve jenkin , TUHS X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Early Unix and Keyboard Skills List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --000000000000f1486305ec93ece7 Content-Type: text/plain; charset="UTF-8" On Thu, Nov 3, 2022 at 11:19 AM Paul Winalski wrote: > The model 33 had a very fast and powerful carriage return mechanism, > good for cracking walnuts, but it took up to two character times to > complete a CR. If you didn't send two non-printing characters (such > as NUL), you risked having your character struck somewhere in the > middle of the line. > That was not my experience. I cut my teeth on a PDP-8/M running OS/8 with an ASR-33 attached and directly programming the KE8E controller without any additional time-delay loops. Outputting additional NULs would have screwed up binary paper tape output, so that can't have been how it was done. --000000000000f1486305ec93ece7 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Th= u, Nov 3, 2022 at 11:19 AM Paul Winalski <paul.winalski@gmail.com> wrote:
=C2=A0
The model 33 had a ver= y fast and powerful carriage return mechanism,
good for cracking walnuts, but it took up to two character times to
complete a CR.=C2=A0 If you didn't send two non-printing characters (su= ch
as NUL), you risked having your character struck somewhere in the
middle of the line.