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Computer Peripherals
Computer Peripherals are devices that are used along with the computers. Printers, scanners, UPS, modems etc are all called peripherals. They are also called computer accessories. They are generally attached to the computer. They may be wired or wireless.
Printers
Laser priners, Inkjet printers, DotMatrix printers, Line matrix printers
Scanners
MFDs (Multi-Function devices)
Printer-scanner-copier, Printer-scanner-copier-fax
Plotters
CD Drives, CD writers, DVD writers,
Modems
Routers
UPS
Online UPS
Offline UPS
LCD Projectors
Computer Software
A Computer is controlled by instructions stored inside its memory. These instructions are called software. The computer hardware by itself cannot do anything. By loading a software designed to do a particular task, the computer does that specific task. Thus, to type a letter, we use the word processing software like MS Word, that has been designed for word processing. By loading a game software, we can play a game on the computer. Thus different software packages perform different tasks for us. Software is also called programs. There are millions of computer programs created for different purposes. There are many programs competing to do the same task too, each one doing the job in different ways just as you get your pizza in different flavors.
Programs do a specific task for which it is created. A program created to trouble you or even to destroy data on your PC is also a program-a virus program.
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Acclaimed as the most child-friendly family software, TypingPundit comes with free brain games that all family members can play everyday to create better bondings within the family and to enhance mental fitness. Click here to learn more about TypingPundit
About computers
Man has been defined by someone as a tool making animal. At first, he made tools to help him in his physical work. Simple levers that help a farmer to produce better crops, bicycles that help him reduce distances, and killing-machines like rifles and missiles that makes killing his fellow man easier are all tools he made to help in his physical work. Most of man's work is mental and he made machines to ease his mental work and we call them computers.
We are all familiar with what a computer is in a specific, contemporary sense. Personal computers are found in most aspects of daily life, and for some it is hard to even imagine a world without them. But the term computer means more than simply the Macs and PCs we are familiar with. A computer is, at its most basic, a machine which can take instructions stored inside them, and perform computations based on those instructions.
It is the ability to be controlled by instructions stored inside them, known as programs in the parlance of computers, that distinguishes a computer from a mechanical calculator. While both are able to make computations, a calculator responds simply to immediate input. In fact, most modern calculators are actually computers, with a number of pre-installed programs to help aid in complex tasks.
Computers range from the very small to the very large. Some are capable of doing billions of calculations in a single second, while others may take longer periods of time to do even the most simple calculations. But theoretically, anything one computer is capable of doing, another computer will also be able to do. Given the right instructions, and sufficient memory, a computer found in a wristwatch should be able to accomplish anything a supercomputer can
PC internals - Motherboard, Processor, RAM, HDD.
Any Computer of today, desktop or laptop will have a motherboard on which the
Computer Hardware
All the physical components of your computer are called hardware. The processor, motherboard, RAM, Harddisk, SMPS, cabinet, keyboard, Mouse are all parts of hardware. The other component of a computer is called software. The instructions that are directing the computer to behave in a particular way is software. When you play a game, the game software is being executed by your hardware. When you type a letter, the computer is directed by a word processing software like MS Word.
