From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id d142ef3c for ; Fri, 10 Jan 2020 17:28:09 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id EFC6F9B88E; Sat, 11 Jan 2020 03:28:07 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id D436B93D85; Sat, 11 Jan 2020 03:27:50 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id B17D593D85; Sat, 11 Jan 2020 03:27:48 +1000 (AEST) Received: from mercury.lcs.mit.edu (mercury.lcs.mit.edu [18.26.0.122]) by minnie.tuhs.org (Postfix) with ESMTPS id 56E1393D07 for ; Sat, 11 Jan 2020 03:27:48 +1000 (AEST) Received: by mercury.lcs.mit.edu (Postfix, from userid 11178) id 90BDE18C09E; Fri, 10 Jan 2020 12:27:47 -0500 (EST) To: tuhs@minnie.tuhs.org Message-Id: <20200110172747.90BDE18C09E@mercury.lcs.mit.edu> Date: Fri, 10 Jan 2020 12:27:47 -0500 (EST) From: jnc@mercury.lcs.mit.edu (Noel Chiappa) Subject: [TUHS] Tech Sq elevator (Was: screen editors) 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: jnc@mercury.lcs.mit.edu Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > From: Clem Cole > when she found out the elevators were hacked and controlled by the > student's different computers, she stopped using them and would take > the stairs It wasn't quite as major as this makes it sound! A couple of inconspicuous wires were run from the 'TV 11' on the MIT-AI KA10 machine (the -11 that ran the Knight displays) into the elevator controller, and run onto the terminals where the wires from the 'down' call buttons on the 8th and 9th floors went. So it wasn't anything major, and there was really no need for her to take the stair (especially 8 flights up :-). The code is still extant, in 'SYSTEM; TV >'. It only worked (I think) from Knight TV keyboards; typing 'ESC E' called the elevator to the floor that keyboard was on (there's a table, 'ELETAB', which gives the physical floor for each keyboard). The machine could also open the locked 9th floor door to the machine room (with an 'ESC D'), and there some other less major things, e.g. print screen hardcopy. I'm not sure what the hardware in the TV-11 was (this was all run out of the 'keyboard multiplexor'); it may have been something the AI Lab built from scratch. Noel