The LCD consists of several thin layers that polarize the light passing through them. The polarization of one layer, containing long thin molecules called liquid crystals, can be controlled electronically at each pixel, blocking varying amounts of the light to make a pixel lighter or darker. Other types of flat panel technology exist such as plasma displays but LCDs are most commonly used in computers, especially laptops.
This types of monitors are also known as Flat panel Monitor.
These days LCD Monitor are very popular. The normal resolution of computer are X pixeland you can have resolution of X pixels or even X pixels. It is a device that must be connected to a computer which allows a user to print items on paper, such as letters and pictures.
It can also work with digital cameras to print directly without the use of a computer. Some of the most commonly used Printer are: A laser Printer produces high Quality print that one normally find in publishg.
It is extremely fast and quiet. The fastest laser Printer can print upto pages per minutes in monochrome black and white and upto per minutes in Colour.
Some inkjet printers can make full color hard copies at dpi or more. Although the image it produces is not generally quite as sharp as the output of a Laser printer, the quality of ink-jet images is still high.
So that ink-jet printer offer an excellent middle ground between dot matrix and laser printer. Like laser printer, an ink-jet printer is quiet and convenient, but not particularly fast.
It is very versatile and inexpensive output device. Its speed is measured in Characters per second CPS.
Althrough it is less expensive, it is louder, slower and produces loewr pint Quality. A Line printer is generally used with large computer system to produce text based Data processing reports. In the past, print quality on line printers was not high. Developments in technology are improving the print Quality on line printers.
These are in the cost range of lacs of Rupees. There are two types of Line Printer:with pointing devices. Disadvantages of using keyboards for data input include It takes a lot of time to practice in order to type quickly and accurately.
Typing speeds are still very slow when compared with computer speeds. Mouse glossary pg. A mouse is the most widely used pointing device with a GUI environment on personal computers.
The devices which are used to give data and instructions to the computer are called Input Devices. Various types of input devices can be used with the computer depending upon the type of data you want to enter in the computer, e.g., keyboard, mouse, joystick, light pen, etc.
Input and Output Devices installation. Another option is to connect the printer and use add hardware wizard. However, if an installation DVD/CD-ROM comes with the printer the best approach is to insert the DVD/CD-ROM and follow the instructions.
Mar 05, · input and output devices || input and output devices with examples for more webkandii.com for previous video https://. An input device is any peripheral so it means that it is piece of computer hardware equipment used to provide data and control signals to an information processing system (a computer).” Input and output devices make up the hardware interface between a computer or scanner.” There are many.
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