Five Most Wanted

HP 2000ASR-33APF Imagination MachineHeathkit H11CompuColor 2


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 dlw@trailingedge.com.

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

Recent News

2007-06-23More Exidy
Added the May 1980 Exidy Catalog and Price List to the Exidy Resorces section of the site. Received a Exidy Sorcerer in original box, tv and box of doc and software recently so expect more updates as I can get to them.

One of the items in the box of Exidy stuff was an unopened package of 4116 16K dynamic rams from Radio Shack. Price on them is $7.95 which is a lot less than I paid for my first set of eight 4116s. I have to admit, finding this gave me a bit of a thrill.

2006-11-05New SuperPET doc
Added a copy of the SuperPET Waterloo microAPL manual in our Commodore section.

2006-11-04New Exidy Doc
Added the Exidy S-100 Expansion Unit Technical Manual and Software Internals Manual to the Exidy resource section.

2006-10-10New system
Added a Laser 128 (Apple IIc clone) and manual.

Update: Added gallery images for the Laser 128.

2006-10-09New feature - image gallery
Something I've always wanted to add to the site was a collection of photos under each system's entry so I had more than just the one image I have on many of the system pages. Finally got around to adding it, though only one system uses it at the moment, need to take more pics now that I have the code in place to support the images. You can see it currently on the entry for my PDP-11/34. I'll tweek it some as I go along but for now it lets me get more photos up.

Update: Added a couple of others now, my Z-110 and XOR S-100.

Site Copyright © 1997 - 2008 David Williams