The nighttime attack scene in front of the hospital was a cinematic ruse. The scene was filmed on the lighted sidewalk along The Esplanade looking across a parkette to a co-op apartment complex on Scadding Ave. in Toronto's Distillery District. The Emergency sign was added for the shoot, and voila, instant hospital.
The computers used are an Apple Lisa for the display monitor, and an Apple /// [3] computer used as the keyboard entry computer.