Exhibits At the Museum

This Day in History

Today: April 24, 2014

March 14, 1955

Bell Labs Announces TRADIC "Giant Brain"

AT&T Bell Laboratories announces the completion of the first fully transistorized computer, TRADIC. TRADIC contained nearly 800 transistors, which replaced the standard vacuum tube and allowed the machine to operate on fewer than 100 watts -- or one-twentieth the power required by a comparable vacuum tube computer.