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The IBM 701 Electronic Data Processing Machine, known as the Defense Calculator while in development, was IBM’s first commercial scientific computer and its first series production mainframe computer, which was announced to the public on May 21, 1952. [1]
The Kenbak-1 has a total of nine registers. All are memory mapped. It has three general-purpose registers: A, B and X. Register A is the implicit destination of some operations.
Glenn A. Beck (background) and Betty Snyder (foreground) program ENIAC in BRL building 328. (U.S. Army photo, c. 1947–1955) ENIAC (/ ˈ ɛ n i æ k /; Electronic Numerical Integrator and Computer) [1] [2] was the first programmable, electronic, general-purpose digital computer, completed in 1945.
IBM 704 vacuum-tube circuit module. The IBM 704 had a 38-bit accumulator, a 36-bit multiplier/quotient register, and three 15-bit index registers.The contents of the index registers are subtracted from the base address, so the index registers are also called "decrement registers".
The Z3 was a German electromechanical computer designed by Konrad Zuse in 1938, and completed in 1941. It was the world's first working programmable, fully automatic digital computer. [3]
Aiken was born on 8 March 1900, in Hoboken, New Jersey, to Daniel Aiken, who came from a wealthy and established Indiana family, and Margaret Emily Mierisch, whose parents were German immigrants. [3]
The Gavilan SC is an early laptop computer first released by the Gavilan Computer Corporation in April 1984. The computer ran on an Intel 8088 microprocessor running at 5 MHz and sported a touchpad for a pointing device, one of the first computers to do so.
Designed at the MIT Lincoln Laboratory [4] largely as an experiment in transistorized design and the construction of very SMALL core memory systems, the TX-0 was essentially a transistorized version of the equally famous Whirlwind, also built at Lincoln Lab.