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Back to the 1980s—a #DEC VT320 terminal connected to a VAX-11/780 running 4.3BSD under the #SimH #emulator. Note the date on the screen. :)

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Search isn't much help to me. All I get are ways to put scrapbooks on computers. Would appreciate proper links to learn more about its background. "Behind the scenes at TNMOC, volunteers are at work restoring historically important computer systems. One such project is the restoration of Scrapbook, an early 1970s system that anticipated the World Wide Web.

In its day, Scrapbook was something of a minor cult amongst its users. It was built by National Physical Laboratory (NPL) and rolled together word processing, e-mail and hypertext - a idea that was later to come together in the form of the World Wide Web.

Scrapbook is based on a DEC PDP 11/70 and two DEC (CDC) RM03 67Mb removable disk drives and has been in storage for many years. The last service on this machine was carried out in 1987."
How do you clean and restore a 1970s precursor of the WWW? It's now being restored by TNMOC volunteers Ray Allison and Sean Allison of Askaris IT using AF International specialist technology cleaning products.

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On 5/25/2013 Paul Jones posted an article in ibiblio ( about his rediscovery of perhaps the earliest World Wide Web pages. Later, on August 23, 2016 to honor the 25th anniversary of Tim Berners-Lee making the WWW code publicly available, he repost the story behind those oldest pages at
Those pages — Tim Berners-Lee’s Demonstration Page for Hypertext 91 and Jones own personal page — have been on the net almost continually since they were developed and/or modified in the late Fall of 1991 (place view-source: and view-source: in Chrome to see the old school html unrendered).

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23 Years of FreeDOS

On June 29th, 2017, FreeDOS turned 23 years old. The team that manage the project decided that it would be great to celebrate the anniversary by having a bunch of past and current users share their stories about why they use FreeDOS.
These stories are written from different perspectives, such as: "How did you discover FreeDOS?" "What do you use FreeDOS for?", "How do you contribute to FreeDOS?" and "Why FreeDOS?" (Answer: FreeDOS is a open source, complete, free, DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or develop embedded systems. Any program that works on MS-DOS should also run on FreeDOS)
The link below allow to download the eBook that contains the voices of many of the users who contributed their stories, as well as the history of FreeDOS. Many individuals have helped make FreeDOS what it is, but this eBook represents only a few of them. I hope you enjoy this collection of 23 years of everything FreeDOS!

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Tickets for an exhibition on the LEO at the Centre for Computing History, Cambridge, UK on 11 November 2017. "An exhibition that explores how a company famous for its tea shops took the lead in applying computers to the world of business in the 1950s.

We'll have members of the LEO Society with us for the whole weekend to talk to visitors about what is was really like working with these big old computers and there'll be lots of rare LEO items on display.

In November 1951, British company J. Lyons & Co., famous in the food and catering industry, announced that it had built its own computer and was using it to process the output of its bakeries. At this time in history, computers filled whole rooms and had to delivered by forktruck. They were used as research and military tools but Lyons had developed one as a business application for the very first time.

The first LEO was heavily based on the Cambridge EDSAC and, in fact, the forward-thinking Lyons had part funded EDSAC's development so that they could produce a copy themselves for commercial purposes. LEO Computers went on to become part of many British companies from Ford to Kodak and remained in use in the Post Office until the early 1980s.

Sadly, there is little LEO hardware left in the world but this exhibition will bring together the objects CCH holds along with some items on loan from the LEO Society and Corby Heritage Centre to tell the story of this extraordinary company and the computerised business world they helped create.

Admission to this exhibition is free as part of our standard museum entry charges so if you book your ticket here you'll only pay the entry fee and you can see the whole museum when you visit.

Remember - All proceeds go to support our Computing Museum!"

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Just to spread the word: there will be a Vintage Computer Festival in Switzerland again this year. Like last year, it'll be in Zurich's Rote Fabrik cultural center, at the shore of Lake Zurich. And Zurich is really not that far away...

Here's an impression of last year's event, but you might want to press the mute button first:

There's a nice line-up of exhibits and presentations. But we have space, so please let us know if you want to add an exhibit. All details are on .

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Ter (not bi)nary computing on ternary computers. Topic for discussion, keyword for search, food for thought, motive for wonder and ... definitively part of the Computer History! (period)
Had enough of binary computing? Relax with a bit of ternary computing. You can program the machine in DSSP, not entirely unlike Forth, and apparently not an invented language but a discovered one. (Like Lisp, I think.)
There's an in-browser emulator of the Setun machine - check the big list:
For a much earlier example of ternary computing, try Thomas Fowler who used ternary to account for millions of farthings back in 1840.
[A farthing being a quarter of a penny - 960 of them to the pound sterling]
By coincidence, the linked article is headed by a quote from Knuth:
"Perhaps the prettiest number system of all is the balanced ternary notation" - Donald E. Knuth
and that's a coincidence because I was considering posting about Knuth today, specifically his great software work TeX, presently up to version 3.14159265, about which he said:
"I have put these systems into the public domain so that people everywhere can use the ideas freely if they wish. I have also spent thousands of hours trying to ensure that the systems produce essentially identical results on all computers. I strongly believe that an unchanging system has great value, even though it is axiomatic that any complex system can be improved. Therefore I believe that it is unwise to make further “improvements” to the systems called TeX and METAFONT. Let us regard these systems as fixed points, which should give the same results 100 years from now that they produce today."
That's from the interesting article about typesetting at
(via languagehat)

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A ternary computer (also called trinary computer) is a computer that uses ternary logic (three possible values) instead of the more common binary logic (two possible values) in its calculations. Setun was a computer developed in 1958 at Moscow State University. It was built under the leadership of Sergei Sobolev and Nikolay Brusentsov and It was the most modern ternary computer, using the balanced ternary numeral system and three-valued ternary logic.
See also:
2 )
3) Development of ternary computers at Moscow State University (
4) Ternary Computers: The Setun and the Setun 70 (
5) The Setun Conspiracy {
6) Why ternary computers like Setun didn't catch on? (
7) Trinitarian logic and ternary digital technology (, in Russian, you can use Google Translate)
8) Hackaday 10th Anniversary: Non-Binary Computing (

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Interview with #BobSupnik, a former engineer and a VP of #DEC and creator of #SimH emulator of historical machines

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KDE, one of the main GUI in the Linux realm is now no longer "underage", 21years... that passed fast (and furious?)
A look at KDE over the years: KDE 1 (circa 1999), 2 (circa 2001), KDE 3 (circa 2008), and 4 (circa 2014); and KDE Now: Plasma Desktop 5
5 Photos - View album
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