This machine is the oldest computer artifact in the
Computer Museum of America collection.
This homemade analog computer was used to design aeronautical
lenses, and is an early example of a CAD (Computer Aided Design)
machine. The computer was programmed by wiring circuits together
with scores of cables that plugged into hundreds of jacks.
When in use, the front of the computer would be covered with
cables. These programs calculated the coordinates for a plotter
to draw the parabolic curves of lenses.
Vacuum tubes were the main staple of electronic components
until the advent of solid state circuits. Inside this computer
are vacuum tubes and other components available at local hardware
and electronics stores following World War II.