MAJOR PROJECTS AND CLIENTS
PARALLEL PORT TAPE BACKUP: Developed for H45 Technology (1990-1992)
Inside
a parallel port tape backup
system. I have to be careful, if I go any further back in time
I'll have to pull out my old vacuum tube projects. This boards
represents the internal circuitry of a parallel port tape backup, one
of the first on the market. It worked in DOS and Windows
3.1!! You could back up a whopping 256 Megabytes and it only took
30 minutes. The switching power supply ran at 50 khz if I
remember correctly. Today of course the coils and chips for the
same power would be tiny, running at 1 to 3 mhz. It is
interesting to examine an earlier design like this; in just 20 years
technology has made incredible leaps and bounds. I wonder where
we'll be in another 20 years!
