I had never heard this name until now, but I owe Dr. Tim King a significant part of my career. Never having been a DOS user, AmigaDOS was my gateway drug to the command line interface, and to me learning the Linux CLI a few years later.

Thank you, Dr. King!

interview from October 2021: https://www.youtube.com/watch?v=pm-szurM5VY

*corrected date

say "RIP"

Sad to hear. Met him a few times. The company I worked for and his (Perihelion) partnered on a few projects.

Thanks for everything. Mr. King. Rest in peace.

Truly a King. Requiescat in pace.

Dr. Tim King, thanks for introducing real computers to me, in the form of Amiga.

R.I.P. !

https://web.archive.org/web/20131016145634/http://www.amigah...

> Few people have heard of TripOS outside the Amiga market. As a standalone operating system it is unremarkable, however its relation to the AmigaOS makes it interesting. TripOS was developed at Cambridge University on an IBM 3081 (or an earlier IBM mainframe) running a locally-written OS called Phoenix during the late 1970s and early 1980s. The name is derived from the course description at the university. For example, it is possible to read for the mathematics tripos. It is also possible that the 'pos' suffix stood for Portable Operating System.

> At some point during the early 1980s Dr. Tim King ported the OS to the Motorola 68k. The operating system exists on a range of platform during this period, including the PDP11, DG Nova, 68000 (a homebrew 68k machine?), and the GA-16/220.

> The story continues at Commodore in 1984. They had recently bought the Amiga technology and were preparing it for a mainstream market. Development had fallen behind schedule, particularly in the development of the original operating system, dubbed CAOS. This prompted fears that Atari would beat them to the 16-bit market with their off-the-shelf ST range. In a series of meetings it was decided that an outside developer would be contracted to complete the task, abandoning large sections of the existing OS. MetaComCo were chosen as the contractor, as a result of their existing TripOS 68k port. It was a minor task to get the operating system to work on the Amiga prototypes, but required some time to get it to interact with Intuition.

> Reports of the time period indicate that the Los Gatos team, led by Jay Miner, were unhappy with the decision and openly criticised the end result. In particular, the TripOS/Intuition hybrid lacked many of the features they had planned (resource-tracking, etc.).

> A large portion of the TripOS code continued to exist in the Dos.Library, until it was replaced in v36 by a combination of assembler & C. However, the ghost of TripOS could not be exorcised and a small amount of the code lives on in the later AmigaOS releases to ensure compatibility.

Not many people like TRIPOS, or BCPL. It's an ugly language. However, it's thanks to Dr King's early '80s port of it to the 68000, that we even have the Amiga at all. The Amiga team had developed some excellent components of the OS, e.g. Exec as the central multitasking kernel, and Intuition for graphical interfaces, but they had contracted out work on the Amiga's DOS (e.g. the filesystem, loader, process management, command line interface, file APIs), asking them to create what they called CAOS (Commodore Amiga OS), and that totally failed. According to Carl Sassenrath, the contractors loved Unix and their Sun workstations too much and didn't want to hook up to the rest of the Amiga's OS. So they cut that company loose and started looking for an alternative. The existing 68000 port of TRIPOS saved the day, and let the Amiga launch when it did.

RIP, still own an Amiga 500! Thank you sir.