personal computer

A computer is a programmable machine. The two principal characteristics of a computer are: The idea responds to a specific set of instructions in a well-defined manner and it can execute a prerecorded list of instructions (a program).

Modern Computers Defined

Modern computers are electronic digital and digital. The actual machinery - wires, transistors, and circuits - is referred to as hardware; the instructions and data are called software.

All general-purpose computers call for the following hardware components:

Memory: enables a computer to store, at least temporarily, data along with programs.

Mass storage device: allows a computer to permanently retain large amounts of data. Popular mass storage devices include solid state drives (SSDs) or disk memory sticks and tape drives.

Input device: usually a keyboard and mouse, typically the input device is the conduit through which data and instructions enter a computer.

End result device: a display screen, printer, or other device that lets you see what the computer system has accomplished.

Central processing unit (CPU): the heart of the computer, this is the part that actually executes instructions.

In addition to these components, many others make it possible for the basic components to function together efficiently. For example , every computer requires a bus that transmits data from a part of the computer to another.

Computer Classification: By Size and Power

Most people affiliate a personal computer (PC) with the phrase computer. A PC is a small and affordable computer designed for an individual use. PCs are based on the microprocessor technology that enables suppliers to put an entire CPU on one chip.

Personal computers at home can be used for a number of different apps including games, word processing, accounting and other tasks.

Computers are generally classified by simply size and power as follows, although there is considerable overlap. The differences between laptop or computer classifications generally get smaller as technology advances, creating smaller and more highly effective and cost-friendly components.

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Personal computer: a small, single-user computer based on a microprocessor. Beyond the microprocessor, a personal computer has a keyboard for entering data, a monitor intended for displaying information, and a storage device for saving data.

Workstation: a powerful, single-user laptop. A workstation is like a personal computer, but it has a more powerful microprocessor and a higher-quality monitor.

Minicomputer: a multi-user computer capable of supporting from 10 to a huge selection of users simultaneously.

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Mainframe: a powerful multi-user computer capable of supporting many hundreds or thousands involving users simultaneously.

Supercomputer: an extremely fast computer that can perform hundreds of millions of guidance per second.

Worldwide Vector Graphics (SVG)

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International Vector Graphics (SVG) is a description of an image for application of the Extensible Markup Language (XML). Any course such as a Web browser that realizes XML can display the using the information provided inside SVG format. Different from a new raster graphicsscalable part of the name emphasizes that vector artwork images can easily be made worldwide (whereas an image specified with raster graphics is a fixed-size bitmap). Thus, the SVG format enables the observing of an image on a laptop or computer display of any dimensions and resolution, whether a teeny LCD screen in a cellular telephone or a large CRT present in a workstation. In addition to capability of size reduction and swelling, SVG allows text inside of images to be recognized as these, so that the text can be placed by a search engine and easily converted into other languages.

Vector graphics images also have the opportunity advantage over the standard Online image formats, the GIF and the JPEG, of measurement. Compared with a bitmap impression, an SVG image could possibly be much smaller and arrive more rapidly.

GIF and JPG photographs (and a newer format, often the PNG) are expected to continue to help predominate. While the bitmaps these image formats can be resized, dimensional reduction does not specifically save memory, storage, as well as bandwidth, and significant increasing produces irregular edges ("the jaggies"). It is expected, nevertheless , that bitmaps are, all of which will likely continue to be, favored to get digital transmission of pics, especially scenes containing elaborate objects not readily translatable into the formulas used by vector graphics programs.