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[23.93.191.159]) by smtp.gmail.com with ESMTPSA id 11-20020a63104b000000b005d8e30897e4sm3260496pgq.69.2024.03.01.10.41.45 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 01 Mar 2024 10:41:46 -0800 (PST) Message-ID: <65e5dc7b-d893-4093-ac4d-5c7d2f300021@gmail.com> Date: Fri, 1 Mar 2024 10:41:47 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: tuhs@tuhs.org References: From: Jon Forrest In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Message-ID-Hash: AFK3XB64555URH2TXDE3NY5WPUVSQRRM X-Message-ID-Hash: AFK3XB64555URH2TXDE3NY5WPUVSQRRM X-MailFrom: nobozo@gmail.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 X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: RIP Niklaus Wirth, RIP John Walker List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On 3/1/2024 10:14 AM, Paul Ruizendaal wrote: > > For Walker, the link is via the company that he was running as a > side-business before he got underway with AutoCAD: > https://www.fourmilab.ch/documents/marinchip/ > > In that business he was selling a 16-bit system for the S-100 bus, > based around the TI9900 CPU (which from a programmer perspective is > quite similar to a PDP11). For that system he wrote a Unix-like > operating system around 1978-1980, called NOS/MT. He had never worked > with Unix, but had spelled the BSTJ issues about it. It was fully > written in assembler. I've mentioned that I worked at Ford Aerospace in the software tools group in 1977-1978. I had the desk next to John Nagle. One day John had a visitor who was talking about interesting stuff so I went over to see who it was. It was John Walker, and he was talking about what he was doing with the TI9900 chip. I don't remember what he said, but I do remember being quite impressed. More name dropping - I was walking the dog on the trail in back of my house the other day and I started talking to a guy about my age who was also walking his dog. He said he was a retired software guy, so I asked him where he had worked. He said that he was one of the founders, along with John Walker, of AutoCad! His name was Greg Lutz. Jon Forrest