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, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 14582 invoked from network); 27 Jul 2023 03:44:08 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 27 Jul 2023 03:44:08 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 30A76402CE; Thu, 27 Jul 2023 13:44:05 +1000 (AEST) Received: from lax.lemis.com (www.lemis.com [45.32.70.18]) by minnie.tuhs.org (Postfix) with ESMTP id 5BD9040120 for ; Thu, 27 Jul 2023 13:43:51 +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 BCFA2280A0; Thu, 27 Jul 2023 03:43:50 +0000 (UTC) Received: by eureka.lemis.com (Postfix, from userid 1004) id 112222635C7; Thu, 27 Jul 2023 13:43:50 +1000 (AEST) Date: Thu, 27 Jul 2023 13:43:50 +1000 From: Greg 'groggy' Lehey To: Paul Winalski Message-ID: <20230727034350.GC92211@eureka.lemis.com> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ABTtc+pdwF7KHXCz" Content-Disposition: inline In-Reply-To: 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: XYWHBV7BXQN63WTTEX7C4JQEKJSF7PNU X-Message-ID-Hash: XYWHBV7BXQN63WTTEX7C4JQEKJSF7PNU X-MailFrom: grog@lemis.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: COFF X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [COFF] Re: What Happened to Interdata? List-Id: Computer Old Farts Forum Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --ABTtc+pdwF7KHXCz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wednesday, 26 July 2023 at 10:38:04 -0400, Paul Winalski wrote: > On 7/25/23, segaloco via COFF wrote: >> Were Interdata machines >> problematic in some sort of way, or was it merely fate, with more popular >> minis from DEC simply spacing them out of the market? > > I suspect that Interdata had the same problem with their S/360 > lookalikes that RCA did with theirs. If your business model is to > provide a cheaper hardware alternative to IBM, your machine has to run > IBM software, particularly the OS. That's not the way I remember it. RCA (and UNIVAC with them) and Interdata had instruction sets that were close to the IBM instruction set, but my recollection was that they were different enough that IBM software wouldn't run on them. That's a different situation from Amdahl, which was almost completely compatible. But that was a few years ago now, and I have forgotten the details. Does anybody know for sure whether they could run IBM software? I know from my time at UNIVAC that the 9000 series had their own operating systems. 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 --ABTtc+pdwF7KHXCz Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iEYEARECAAYFAmTB5/UACgkQIubykFB6QiMpQwCfc2KVCAndZNkwengcvx+nvgOV wGIAn1HibyVIO6hO8T8lZfCG27hHzGvY =Xfhi -----END PGP SIGNATURE----- --ABTtc+pdwF7KHXCz--