On October 8, 1996 at the Aberdeen Proving Ground, MD, the U.S. Postal Service issued these Computer Technology 32¢ gummed stamps, in honor of the 50th anniversary of the first modern computer (ENIAC). The stamp art is by designer Nancy Skolos and her photographer husband Tom Wedell of Charlestown, MA.  The base of the graphic design is an image of a human brain taken from an old anatomy textbook; and the cubes that are partially covering and surrounding the brain show photos of computer circuit board parts and binary language.

In 1946, two engineers (John Mauchly and J. Presper Eckert, Jr.) from the Moore School of Electrical Engineering at Pennsylvania University designed the ENIAC (Electronic Numerical Integrator and Computer). It weighed more than 30 tons, occupied more than 1500 square feet, and was controlled by nearly 18,000 vacuum tubes linked by 500 miles of wiring. It was first used at the Army Research Laboratory at the Aberdeen Proving Ground in Maryland.