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  2. Computer - Wikipedia

    en.wikipedia.org/wiki/Computer

    A general-purpose computer has four main components: the arithmetic logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O). These parts are interconnected by buses , often made of groups of wires .

  3. History of general-purpose CPUs - Wikipedia

    en.wikipedia.org/wiki/History_of_general-purpose...

    This was a virtual computer, a reference instruction set, and abilities that all machines in the family would support. To provide different classes of machines, each computer in the family would use more or less hardware emulation, and more or less microprogram emulation, to create a machine able to run the full S/360 instruction set.

  4. Analytical engine - Wikipedia

    en.wikipedia.org/wiki/Analytical_Engine

    The analytical engine was a proposed digital mechanical general-purpose computer designed by English mathematician and computer pioneer Charles Babbage. [2] [3] It was first described in 1837 as the successor to Babbage's Difference Engine, which was a design for a simpler mechanical calculator.

  5. Computing - Wikipedia

    en.wikipedia.org/wiki/Computing

    A programmer, computer programmer, or coder is a person who writes computer software. The term computer programmer can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst.

  6. Personal computer - Wikipedia

    en.wikipedia.org/wiki/Personal_computer

    A personal computer, often referred to as a PC or simply computer, is a computer designed for individual use. [1] It is typically used for tasks such as word processing, internet browsing, email, multimedia playback, and gaming. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician.

  7. ENIAC - Wikipedia

    en.wikipedia.org/wiki/ENIAC

    ENIAC was a large, modular computer, composed of individual panels to perform different functions. Twenty of these modules were accumulators that could not only add and subtract, but hold a ten-digit decimal number in memory. Numbers were passed between these units across several general-purpose buses (or trays, as they were called). In order ...

  8. History of computing - Wikipedia

    en.wikipedia.org/wiki/History_of_computing

    The ENIAC (Electronic Numerical Integrator And Computer) was the first electronic general-purpose computer, announced to the public in 1946. It was Turing-complete, [ 45 ] digital, and capable of being reprogrammed to solve a full range of computing problems.

  9. Computer science - Wikipedia

    en.wikipedia.org/wiki/Computer_science

    Computer science is the study of computation, information, and automation. [1] [2] [3] Computer science spans theoretical disciplines (such as algorithms, theory of computation, and information theory) to applied disciplines (including the design and implementation of hardware and software).

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