Five Most Wanted

HP 2000ASR-33APF Imagination MachineHeathkit H11Enterprise 64

Welcome to The Trailing Edge

This site is devoted to computing technology which has been left behind by the rapidly advancing Leading Edge of computing. Many interesting and useful systems have been forgotten with the mad rush to stay on the Cutting Edge and maintain the high sales of hardware and software companies. While we too like to have the latest and greatest, we don't want people to forget the legacy which lead to today's systems. Many of these older systems were once considered part of the Bleeding Edge but most people know little if anything about them or just dismiss them. If you have some item related to these old systems that you'd like to clear out or just want to say hello and share some story about them, you can email me at

If you are looking for the used PC store in Canada, this is not it. What you are looking for is here.

Recent News

2018-10-15Microsoft co-founder Paul Allen dies
We've lost another one, Paul Allen, co-founder of Microsoft has passed away today of cancer at the age of 65.

2014-10-05MTU-130 Scans
Added a scan of the MTU-130 Hardware Manual in a new MTU-130 section of the Resource section of the site.

2014-06-01General News and Updates
Acquired a few new systems but as the server was moving physical locations and was down for a while, they haven't been added in yet. Should be able to update things more often as it is in a better location for me to work with now. Been far to long.

2013-09-13Wayne Green (1922-2013)
Learned Wayne Green passed away. He published lots of tech books and magazines in the early days of microcomputers. Notably BYTE, 73, Kilobaud, 80 Microcomputing and inCider. I enjoyed and learned a lot from many of his publications and he is missed. Thanks for all of it.

2012-08-22Triplets delivered
Received a new bundle of joy today, a Compucolor II, Osborne 1 and a Sharp PC-4501 plus books, docs, software and magazines. Will need some time to catalog and document everything and get them on the site but look for more coming soon.

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