OUTPUT

Any form of data originating from a computer system, it can be displayed on screen, printed on paper, or in machine-readable form such as a disk or tape.

Name of Device	Image	How It Works
Printer	Picture currently not available!	A device connected to a computer that enables paper output. The three main type are laser, ink or bubble jet, and dot matrix. A laser printer uses this technology to heat the paper, and then bond the toner to the surface - very high quality. An ink jet printer uses a very fine 'gun' or printing head to fire electrons of ink at the paper - high quality, and enables inexpensive colour printing. The oldest of the technologies is dot matrix, also known as impact printers. A matrix of pins is used to impact the characters onto the paper, using an ink ribbon similar to a typewriter - noisy and lower quality, but inexpensive.
Monitor	Picture currently not available!	Also called a display. A device that displays text and graphics generated by a computer. Desktop monitors are usually cathode-ray tubes, and laptop monitors are usually liquid crystal display. A monitor can be monochrome (black and white) or color. Color monitors may show either digital or analog color.
Speakers	Picture currently not available!	You need speakers to hear the sound generated by a sound card. You should buy speakers with a built-in amplifier to strengthen the sound signal and improve the performance.
Robot	Picture currently not available!	Robots are able to perform a variety of tasks as a result of executing instructions contained within a program. We are still a long way from the science fiction robots and androids portrayed by the film industry.Robots in a business sense mean automated machines designed to perform mundane operations which require accuracy, such as assembling cars.They are seldom manufactured to resemble the human form.
Machine Tools	Picture currently not available!	Computer Aided Manufacturing (CAM) tools are used to manufacture a variety of products.Repetitive functions are controlled by sets of computer instructions.Machine tools automate factory production and have the advantage over humans of high accuracy, and they never require a coffee break!
Plotter	Picture currently not available!	Plotters are used to produce graphs or diagrams.Plotters can be of two types: Pen plotters Electrostatic Pen plotters have an ink pen attached to draw the images, and electrostatic plotters work similarly to a laser printer.