"The ICON workstation and LEXICON file server were originally designed by Cemcorp, the Canadian Educational Microprocessor Corporation, specifically for use in Canadian schools. They were first produced by Burroughs then took the name of Unisys when Burrough and Sperry merged to form Unisys. Up to about 20 diskless workstations got everything off of the central file-server. They ran QNX, a flavour of Unix operating system with optional GUI shell. The workstations offered a graphical interface including windows, pick-areas, and a tracker/cursor that responded to the user through manipulation of a trackball located onto the keyboard." - Brian Sullivan

Anybody actually remember these? - Brian Sullivan

The QNX used in the ICON is the same (at least from the same people) as RIM bought recently and included in the Playbook (and likely to power future Blackberrys). - Brian Sullivan