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=-1.0 required=5.0 tests=MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 31632 invoked from network); 15 Dec 2022 06:31:07 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 15 Dec 2022 06:31:07 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 9B3BA42471; Thu, 15 Dec 2022 16:30:54 +1000 (AEST) Received: from lax.lemis.com (www.lemis.com [45.32.70.18]) by minnie.tuhs.org (Postfix) with ESMTP id 4AF944246D for ; Thu, 15 Dec 2022 16:30:49 +1000 (AEST) Received: from eureka.lemis.com (121-200-11-253.79c80b.mel.nbn.aussiebb.net [121.200.11.253]) by lax.lemis.com (Postfix) with ESMTP id 439B02811E; Thu, 15 Dec 2022 06:30:48 +0000 (UTC) Received: by eureka.lemis.com (Postfix, from userid 1004) id A0BA72635BD; Thu, 15 Dec 2022 17:30:47 +1100 (AEDT) Date: Thu, 15 Dec 2022 17:30:47 +1100 From: Greg 'groggy' Lehey To: arnold@skeeve.com Message-ID: <20221215063047.GB84239@eureka.lemis.com> References: <202212131431.2BDEVCls018959@freefriends.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ZfOjI3PrQbgiZnxM" Content-Disposition: inline In-Reply-To: <202212131431.2BDEVCls018959@freefriends.org> Organization: LEMIS, 29 Stones Road, Dereel, VIC, Australia Phone: +61-3-5309-0418 Mobile: +61-490-494-038. Use only as instructed. WWW-Home-Page: http://www.lemis.com/grog X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 User-Agent: Mutt/1.6.1 (2016-04-27) Message-ID-Hash: UFSZJUAZ7LU4XBNZUZP6B5XFRBPEYTU3 X-Message-ID-Hash: UFSZJUAZ7LU4XBNZUZP6B5XFRBPEYTU3 X-MailFrom: grog@lemis.com 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: douglas.mcilroy@dartmouth.edu, tuhs@tuhs.org X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Delay line memory (was: Clever code) List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --ZfOjI3PrQbgiZnxM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tuesday, 13 December 2022 at 7:31:12 -0700, arnold@skeeve.com wrote: > For us (relative) youngsters, can you explain some more how delay > line memory worked? At a slight tangent, if you're ever in Melbourne (Australia, of course), you should take a look at CSIRAC, allegedly the oldest intact computer still in existence. It had delay line memory. I took some photos of it years ago: http://www.lemis.com/grog/photos/Photos.php?dirdate=20040904 Greg -- Sent from my desktop computer. Finger grog@lemis.com for PGP public key. See complete headers for address and phone numbers. This message is digitally signed. If your Microsoft mail program reports problems, please read http://lemis.com/broken-MUA.php --ZfOjI3PrQbgiZnxM Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iEYEARECAAYFAmOavxcACgkQIubykFB6QiO1zgCfXLkAXTWH3rn/Rn9josv/3xQd aWcAnjJaVl5TxLU8UJfmaQzI7N8z50fL =C4Iz -----END PGP SIGNATURE----- --ZfOjI3PrQbgiZnxM--