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    Classifications of Computers: 1. According To Purpose

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    Rosen LP
    Computers can be classified in several ways: 1. By purpose - general purpose computers can perform many tasks but lack efficiency, while specific purpose computers are designed for single tasks. 2. By processing type - analog computers use continuous measurements, digital computers use discrete 0s and 1s, and hybrid computers combine both. 3. By capacity - supercomputers are the most powerful and expensive, used for intensive tasks, while mainframes support many users, and mini, micro, and personal computers vary in size and portability.

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    Classifications of Computers: 1. According To Purpose

    Uploaded by

    Rosen LP
    34 views2 pages
    Computers can be classified in several ways: 1. By purpose - general purpose computers can perform many tasks but lack efficiency, while specific purpose computers are designed for single tasks. 2. By processing type - analog computers use continuous measurements, digital computers use discrete 0s and 1s, and hybrid computers combine both. 3. By capacity - supercomputers are the most powerful and expensive, used for intensive tasks, while mainframes support many users, and mini, micro, and personal computers vary in size and portability.

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    Classifications of Computers

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    Lesson 3

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    Computers can be classified in several ways: 1. By purpose - general purpose computers can perform many tasks but lack efficiency, while specific purpose computers are designed for single tasks. 2. By processing type - analog computers use continuous measurements, digital computers use discrete 0s and 1s, and hybrid computers combine both. 3. By capacity - supercomputers are the most powerful and expensive, used for intensive tasks, while mainframes support many users, and mini, micro, and personal computers vary in size and portability.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    34 views2 pages

    Classifications of Computers: 1. According To Purpose

    Uploaded by

    Rosen LP
    Computers can be classified in several ways: 1. By purpose - general purpose computers can perform many tasks but lack efficiency, while specific purpose computers are designed for single tasks. 2. By processing type - analog computers use continuous measurements, digital computers use discrete 0s and 1s, and hybrid computers combine both. 3. By capacity - supercomputers are the most powerful and expensive, used for intensive tasks, while mainframes support many users, and mini, micro, and personal computers vary in size and portability.

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    of 2

    CLASSIFICATIONS OF COMPUTERS

    1. ACCORDING TO PURPOSE

     General Purpose Computers are designed to perform a range of tasks. They have the
    ability to store numerous programs, but lack in speed and efficiency.

    Examples: Personal Computer and Personal Digital Assistant

     Specific/Special purpose computers are designed to handle a specific problem or to


    perform a specific task. A set of instructions is built into the machine.

    Example: Play Station

    2. ACCORDING TO TYPES OF PROCESSING OR DATA HANDLING

     Analog computers work on the principle of measuring, in which the measurements


    obtained are translated into data. Modern analog computers usually employ electrical
    parameters, such as voltages, resistances or currents, to represent the quantities being
    manipulated. Such computers do not deal directly with the numbers. They measure
    continuous physical magnitudes.

     Digital computers are those that operate with information, numerical or otherwise,
    represented in a digital form. Such computers process data into a digital value (in 0s and
    1s). They give the results with more accuracy and at a faster rate.

     Hybrid computers incorporate the measuring feature of an analog computer and


    counting feature of a digital computer. For computational purposes, these computers use
    analog components and for storage, digital memories are used.

    3. ACCORDING TO CAPACITY/SIZE

     Super Computer
    The fastest and most powerful type of computer Supercomputers are very
    expensive and are employed for specialized applications that require immense
    amounts of mathematical calculations. For example, weather forecasting requires
    a supercomputer. Other uses of supercomputers include animated graphics, fluid
    dynamic calculations, nuclear energy research, and petroleum exploration.

    The chief difference between a supercomputer and a mainframe is that a


    supercomputer channels all its power into executing a few programs as fast as
    possible, whereas a mainframe uses its power to execute many programs
    concurrently.
     Mainframe Computer
    A very large and expensive computer capable of supporting hundreds, or even
    thousands, of users simultaneously. In the hierarchy that starts with a
    simple microprocessor (in watches, for example) at the bottom and moves to
    supercomputers at the top, mainframes are just below supercomputers. In some ways,
    mainframes are more powerful than supercomputers because they support more
    simultaneous programs. But supercomputers can execute a single program faster than
    a mainframe.

     Mini Computer
    A midsized computer. In size and power, minicomputers lie
    between workstations and mainframes. In the past decade, the distinction between
    large minicomputers and small mainframes has blurred, however, as has the
    distinction between small minicomputers and workstations. But in general, a
    minicomputer is a multiprocessing system capable of supporting from 4 to about 200
    users simultaneously.

     Micro Computer or Personal Computer


     Desktop Computer: a personal or micro-mini computer sufficient to fit on a desk.
     Laptop Computer: a portable computer complete with an integrated screen and
    keyboard. It is generally smaller in size than a desktop computer and larger than a
    notebook computer.
     Palmtop Computer/Digital Diary /Notebook /PDAs: a hand-sized computer.
    Palmtops have no keyboard but the screen serves both as an input and output
    device.

     Workstations
    A terminal or desktop computer in a network. In this context, workstation is
    just a generic term for a user's machine (client machine) in contrast to a "server" or
    "mainframe."

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