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◦ Laser Printer

                       Laser printer prints the contents by laser technology. It is fast in operation
                       as it operates in similar manner as photocopy machines. The laser beam
                       makes shadow of the images with the help of toner and transfers them
                       on paper.
                       It is  also known as ‘Page Printer’  because it actually stores the content of the page in
                       memory before printing it. It can print up to 5 to 300 pages in a minute and the resolution

                       output ranges from 600 dpi to 2400 dpi.
                       ◦ Plotters
                       Plotter is an output device that helps in printing high quality poster, flex, visuals, charts,
                       graphs, tables and diagrams, etc. It can draw continuous lines and can produce output on
                       paper, polyester film or coloured transparencies. In plotter, the figures are drawn by an
                       electronic pen which is driven by a motor. It uses inkjet cartridges (single or multicoloured)

                       to spray colours for drawing and sketching.
                       There are mainly two types of plotters: Drum Plotter and Flatbed Plotter.














                                          •   Speakers:  Speaker  is an  output  device  that  converts  the  electrical
                                             signals into sound waves that we hear. In speakers, electric current of
                                             the music files is supplied to the magnet that pushes the diaphragm of
                                             the speaker back and forth. This creates pressure and vibration in the
                                             air and as a result sound is produced.

                  •   Projector: A projector is an output device used to project the output from
                     a computer screen onto a large screen. It takes the input from a computer
                     in the form of an image and displays it on a wide screen. In  schools’ smart
                     classes,  office meetings, and cinemas, projectors are used for teaching
                     students, giving presentations in front of office employees, and projecting movies, respectively.

                  Storage Devices

                  Storage devices are used to store data on a computer. There are a number of storage devices
                  such as the hard disks, CDs, DVDs, Blu-Ray, and Flash Drive.


                  •  Hard Disk:  The  hard  disk is the  most widely  used internal storage
                     magnetic disk. It is made up of spindles of smooth metallic plates coated
                     with thin layer of magnetic material. Each plate of a hard disk is called a
                     platter. Each platter has two (read/write) heads, one on each side.



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