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A computer can be described as system of several parts that work all together so you can get relevant results. The physical parts of computer you can touch, and see are called hardware. Keyboard and mouse are the essential part of any system. Without these devices, it can be impossible to work with it. We can communicate regularly with each program installed in the computer by means of mouse and keyboard. Mouse: Mouse is usually a plug and play device that can be attached with your working computer through serial or USB ports accessible on the computer. There are three kinds of mouse available in the market. " Optical Mouse " Wireless Mouse " Simple Mouse Optical mouse is a bit costly than simple one, it controls its cursor through a motion detector sensor embedded in it. Optical mouse is also a dust resistant device and does not require any cleaning. Wireless mouse is an effective option for computer professionals. It requires a Bluetooth connection enabled to perform special functions. An easy mechanical mouse is the cheapest device that includes a ball to control the pointer. It requires regular cleaning because airborne dirt and dust can interrupt its performance. If you adjust the mouse within your hand, a pointer is displayed on the monitor. For item selection, point on something on the screen and click by using primary button. It is the essential thing to interact together with your computer. With no mouse we cannot work fast when using the computer. Item selection, copy paste, deletion of chosen objects, and execution of the software programs are a few of the major capabilities that we could perform by using a mouse. Keyboard: A keyboard is also a plug and play device that can be connected with a computer through serial and USB ports. A wireless key board may also be connected with computer by Bluetooth technology. Keyboards are especially designed for data entry process. All keyboards have alphanumeric, functional and special character keys in it. Latest keyboards are also available with a few extra functions such as, extra USB ports, volume and video controllers embedded in it, these types of keyboards are known as multimedia. We are able to perform various kinds of functions via using this keyboard like opening of document, copy paste function, playing game and booting or rebooting of a computer etc. A keyboard is needed for typing numbers and letters, however it also contains special keys for particular tasks. " The function keys can be found on the top part side of keyboard, carry out several functions depending on your requirements. " The numeric keypad are located on the right corner of keyboard, use to enter numbers. " The navigation keys like arrow keys allow users to move the position inside a document. Get up and obtain control of your precious pc now! Get extra computer tips and education. Discover everything there is to know about computers. Computer basics Quizes, video tutorials, and more
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