COMPUTER AND IT'S PARTS
CPU: CPU stands for Central Processing Unit. It is the ‘central processing unit’ of the computer. It is called a processing device. 0 The information entered in the computer is processed in the CPU. It controls the various processes that take place in the computer. It is called the "brain of the commuter". The wires of various parts of the computer such as keyboard, monitor, mouse, printer, scanner etc.
Mouse: The mouse is used to point to a specific location on the monitor screen. It is a pointing device. It looks like a rat. It is a small instrument that can fit in the palm of the hand. It has two or three buttons at the top. The left mouse button is most commonly used for various commuter operations. The mouse pointer on the monitor screen can be used to move the mouse pointer from one place to another. It has a rotating pulley between the two buttons, which can be used for scrolling up and down. It is rotated by placing it on the mouse pad. Moving it shows an arrow-shaped mouse pointer moving over the monitor screen. The use of the mouse is as follows: 0 To point to a specific thing 0 To select an option from the menu 0 To select a text
Buozz (Printer) : A printer is used to print the information in a computer on paper. It is an output device. The result obtained on paper is called 'hardcopy'. There are three main types of printers;
Dot matrix printer: • The text is printed in dots. Its printing speed is low. • It makes noise while printing, is cheap in price.
Inkjet Printer: 0 The text is printed in the form of ink dot in the form of sprinkler. Its speed is lower than that of a dot matrix printer. It can be printed in both black and white and color. They are expensive in price.
Laser Printer: It prints text using laser technology. Its printing speed is high, it is expensive in price, it can be used to get high quality printing. This type of printer is currently the most prevalent. Dot matrix printer, eJet printer laser printer Plotter is used to print information that is larger than a computer. Is the output device. Is larger in size than a printer. Its printing speed is slow.
They are very expensive in price. It is used for printing large maps, plans, hoarding boards, posters etc. It can be used for printing on paper, cloth, plastic sheet type medium, printing is done using pen, pencil, marker or other type of tool. There are two main types of plotters: Flatbed plotters: are in the form of a table shape, can print in a limited size. It is mainly printed using one or more pens.
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