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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]
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.
256 bytes of memory, 8 bit word size, and I/O limited to switches and lights on the front panel are also characteristics of the 1975 Altair 8800, whose fate was diametrically opposed to that of the Kenbak. However, there were three major differentiating factors between the Altair and the Kenbak which led to the later Altair 8800 selling over ...
An IBM 704 computer at NACA in 1957 An IBM 704 computer, with IBM 727 tape drives and IBM 780 CRT display IBM 704 at the Museo Nazionale Scienza e Tecnologia Leonardo da Vinci, Milan. The IBM 704 is the model name of a large digital mainframe computer introduced by IBM in 1954.
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]
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.
The Atanasoff–Berry computer (ABC) was the first automatic electronic digital computer. [1] The device was limited by the technology of the day. The ABC's priority is debated among historians of computer technology, because it was neither programmable, nor Turing-complete. [2]
The TX-0, for Transistorized Experimental computer zero, but affectionately referred to as tixo (pronounced "tix oh"), was an early fully transistorized computer and contained a then-huge 64K of 18-bit words of magnetic-core memory. Construction of the TX-0 began in 1955 [1] and ended in 1956. [2] [3] [4] It was used continually through the ...