Basic Knowledge About Computers..

Basic Knowledge About Computers

A device that computes, especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information. 

 Computers Have Two Main Parts

Computer Hardware

Computer Software

   What is Computer Hardware?

Computer Hardware is the physical part of the computer system, the machinery and equipment. 

Parts of the computer “you can see”

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  Examples of Computer Hardware

    More Computer Hardware

What is Computer Software?

Computer Software are programs that tell the computer what to do.

Examples

Microsoft Word-word processing program

Microsoft PowerPoint-presentation program

Microsoft Excel-work book program used to track, calculate, and analyze numeric data

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 General Understanding of how              your computer works!

Overview To understand anything it helps to break it down into it's basic components. Then you need to know how each component works. Finally you look at how all the components work together to achieve the desired end product or result. Motherboard It is the main circuit board inside the CPU case. It holds the microprocessor, memory and other crucial circuits and components that control the operation of the Personal Computer. Every device inside or connected to a Personal Computer finds it's way to this board.

Memory The mother board takes the input you give it like mouse clicks, and produces output for you like displaying or printing a file. It can't do this without memory. The PC operating system used by the PC is copied from storage to memory at power up. The OS copy in memory then runs the PC. Memory is volatile which means that when your PC is turned off the contents of memory are lost. It is completely blank and must reloaded each time the PC is powered up.

  Storage Storage is non-volatile which means it retains information even when it is powered off. It stores programs which run the PC as well as data, which is a digital form of everything you use like documents, music, pictures, etc 

Input Devices The keyboard and mouse are the main input devices you use to control your PC.