B.C. 'before computers'
 

In 1996 people were starting to use projectors so the operation was pretty archaic at that point. The standard were 35 mm slides. The worse thing that could happen with slides is that you inserted it in the tray upside down and you would have to take the top off and flip it over in a hurry or there would be times that a lamp would burn out and you would have to chance it in a few seconds to keep the show going…but with computers it’s a completely high tech set up and there are many compatibility issues.