OSI Challenger C1P

Donor: Steve Lawrence
Location: Williamsburg, VA

I don't really know a lot about the Ohio Scientific Challenger. But there's tons of documentation with it, so I should have more info soon.

• View of the front and top of the unit.
• OSI Nameplate, Model C1P, Serial Number 14829
• Lots-o-documentation
• View through the big vent (hole) on the back, showing part of the circuit board. Also shows the attached 9-volt battery. What does the battery do? Steve says: The battery mounted on the back is the power supply for the serial port RS-232 connector on back. This serial port was added to allow connection to a modem when I first bought the computer. Ohio Scientific did not fully populate the motherboard to allow use of the serial port. So I added the necessary components to the motherboard and connected the battery to supply power to the serial power connection.
• View of the backplate, including a big hole, a 9-volt battery, and some sort of BNC video jack.

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