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Their application and their use.

Output Devices. Their application and their use. Printers. Printers are the most output device used in a Computer. With the help of a printer you can print out your work from your PC. Daisywheel Printer. It is a printer that has a daisy with metal embossed characters instead of petals.

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Their application and their use.

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  1. Output Devices Their application and their use.

  2. Printers • Printers are the most output device used in a Computer. • With the help of a printer you can print out your work from your PC.

  3. Daisywheel Printer • It is a printer that has a daisy with metal embossed characters instead of petals. • The wheel homes on the particular character, a hammer strikes the character to make contact with the ribbon and the paper. This is how the daisy printer prints.

  4. Chain Printer • This is like a daisywheel printer. The difference is that it has a chain with the characters. • The chain revolves, hammers strike the particular characters to print, the same way as the daisywheel does.

  5. Line Printer • It is made up of concentric disks like round slices on a shaft. Each slide has a character along the circumference and able to rotate around the shaft independent of the others.

  6. Dot Matrix Printer. • The head consisting of a column of pins moves along the paper sideways. Particular combinations of pins are fired onto the ribbon, making contact with the paper to compose the character or graphic • Printers varies from 9 to 24 pins.

  7. Ink jet printer • It generate heat to make special ink expand. Then with the help of the nozzles it spray it on the paper. This is how these printer print.

  8. Page printers • It is like all other printer that entire one page at a time.

  9. Thermal printers • A printer that uses heat to transfer an impression onto a paper. This is how these printers print.

  10. Impact printers • Impact printers are printers that touch the paper to print. This means there is contact between the paper and the machine. Examples are Dot matrix, line printers, plotters and daisywheel printers

  11. Non-Impact printers • These are printers that don’t have contact with the paper. These give a better quality and make less noise than impact printers. Examples are: Laser printer thermal and inkjet printers.

  12. Plotters. • Also known as graphic printers. These printers can give you a hard copy in A3 size or above. • There are 2 types of plotters- Flatbed plotter and drum plotters.

  13. VDU • It is for short for Visual Display unit. It is the monitor or screen. • With the help of a VDU you can see your work on the monitor.

  14. Projectors. • A projector is a machine that with the help of it one can show or see the work not from a monitor or screen but even on the wall if using a projector. • It is used in halls, schools etc. to show in a bigger form.

  15. CRT monitors • These are monitors that are a bit big. With the help of these, you can see the work on the PC.

  16. TFT monitors • These are monitors that are called “flat monitors” because they are almost flat. These are thinner than CRT monitors.

  17. Speakers • Speakers are used almost in everything: in cars, in a computer, in a T.V. set etc. These are used to produce sound so you can hear.

  18. Raster Image and Vector image • The rectangular area of a display screen actually being used to display images. The raster is slightly smaller than the physical dimensions of the display screen. Also, the raster varies for different resolutions.

  19. The End Made by: Franco Cefai Michael Sultana Frank Luke Attard Luke Grech

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