Wednesday 17 September 2014

Output devices

1-Monitor- It is also known as video display terminal or unit. It is an thin film transistor liquid crystal display (TFT-LCD). It is an output device It forms pictures from tiny dots that are called pixels that are managed in a rectangular form. The clarity of any picture or image depend upon the number of pixels. Computer monitor come in a variety of sizes. But important is your resolution.

2- Printer- This is the another important printer device. From printer we got the hard copy. It is basically accept text and graphics output from a computer system and transfers them on to the the paper that is called hard copy. There are two type of printers Impact and Non- Impact printer.  The main printer qualities are color, resolution, speed, memory . There is a figure that shows the laser jet printer.

for more information, go for the link
http://principleofcomputerprogramming.blogspot.in/2014/10/printers.html

3- Speaker- It is a hardware device that is connected to the sound card and provide us a sound as a output,which is generated by the computer system.  The main purpose of speaker is to produce audio output that can be heard by the listener. Speakers are transducers that coverts electromagnetic waves into sound waves.  It receive audio input from a device, that is either in analog or in digital.

4- Projector- It is another output device. It is an image projector. It help us for making presentation. That help us to make sure everyone in the room can view that presentation.

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