40-bit computers

first electronic computer to be built at the Institute for Advanced Study

early computer

thumb|200px|right|Johnniac computer, Computer History Museum, California The JOHNNIAC was an early computer built in 1953 by the RAND Corporation (not Remington Rand, maker of the contemporaneous UNIVAC I computer) and based on the von Neumann architecture that had been pioneered on the IAS machine. It was named in honor of von Neumann, short for John von Neumann Numerical Integrator and Automatic Computer.

vacuum tube computer

early computer from 1958