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[107.215.223.229]) by smtp.gmail.com with ESMTPSA id l9-20020a37f909000000b006a99088cd99sm15416931qkj.6.2022.06.21.19.10.10 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Jun 2022 19:10:11 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.100.31\)) From: Bakul Shah In-Reply-To: Date: Tue, 21 Jun 2022 19:10:10 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: <6A0E94A6-17FA-49AB-9D9A-72AE5AE628F2@iitbombay.org> References: <20220622001311.GU26016@mcvoy.com> To: George Michaelson X-Mailer: Apple Mail (2.3696.100.31) Message-ID-Hash: CB4AUWMSTO6BIIQ2SYCHFBGJ335PNHZA X-Message-ID-Hash: CB4AUWMSTO6BIIQ2SYCHFBGJ335PNHZA X-MailFrom: bakul@iitbombay.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: The Eunuchs Hysterical Society X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: forgotten versions List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 400MB is less than a CD's worth! Compressed (MP3) would reduce the space by a factor of 11 or so.=20 > On Jun 21, 2022, at 6:55 PM, George Michaelson = wrote: >=20 > There was this persisting story that Ken got permission from somebody > like CBS or Sony to have a very large amount of classical music on a > 400MB drive, for research purposes. No, really: he was doing some > psycho-acoustic thing comparing compressed to uncompressed for > somebody, or improving on the fraunhoffer algorithms which became MP3. > The point was, the rest of us had to listen to CDs and Ken had the > complete works of Bach (or something) on a hard drive, which we were > told he kept in the office, and played at home over a landline of some > horrendously high bandwidth, un-imaginable speeds like a megabit, > imagine, a MILLION of those suckers. How dare he. Thats more than the > whole of queensland. I imagine the truth is much less interesting, and > there was no major IPR fraud going on at the labs coding stuff as MP3 > like we imagined, under the table. >=20 > I imagine this would also have been a Datakit T-1. But surely that was > a 1.44mbit carrier? T1 was smaller than E1 because europeans and > asians learned to count to 32 not 24. >=20 > -G >=20 > On Wed, Jun 22, 2022 at 10:48 AM Rob Pike wrote: >>=20 >> Plan 9 used Datakit as its network for quite a while. The Gnot = terminals had an INCON interface, a megabit (approximately) twisted pair = adjunct to Datakit. I had an INCON link running over a T-1 link to my = house - great excitement back in the day. (The kernel downloaded over = the line and booted the machine up to the window system - there was no = local disk - from power up, in 7 seconds.) NJ Bell needed to install a = new nitrogen-pressurized 26-pair cable, supported by a new telephone = pole, to set it up, because I had already used up all available pairs on = the existing line to my house. All included at no extra cost. (You pay = for the service, not its construction.) >>=20 >> When the internet became unavoidable, we used Plan 9's import = mechanism to import the single external TCP/IP interface from our = gateway machine, over Datakit, to the Gnots. We did the same, but = importing now over IL (an ethernet protocol built by Phil Winterbottom) = when our terminals became PCs. >>=20 >> That's how I remember it, at least, but I might have got some details = wrong. I think much of this is covered in = http://doc.cat-v.org/plan_9/4th_edition/papers/net/ >>=20 >> -rob >>=20 >>=20 >> On Wed, Jun 22, 2022 at 10:13 AM Larry McVoy wrote: >>>=20 >>> On Tue, Jun 21, 2022 at 05:56:02PM -0600, Jacob Moody wrote: >>>> I recently stumbled across the existence of datakit >>>> when going through the plan9foundation source archives. >>>> Would be curious to hear more about its involvement >>>> with plan9. >>>=20 >>> Pretty sure datakit predated Plan 9, didn't Greg Chesson work on = that? >>> He was my mentor at SGI, my memory is datakit was sort of early on = in >>> his career and then he did XTP, which nobody knows about but I = believe >>> is still used by the military. >>>=20 >>> Unless the early Bell Labs datakit and the Plan 9 datakit are = different >>> things.