Output+Devices

**Output Devices-** let you see data that has been processed or is stored on the hard disk or any other storage media.
Black and white laser printers are cheaper than colour ones. || It is especially helpful for people who have bad hearing as they can see the light very clearly. ||
 * ** Output device ** || ** Description ** || ** Extra fact you know/ found out ** ||
 * Monitor || A monitor is the most commonly used output device. It allows you to see the document that you are working on. As you make changes to the document, the monitor automatically updates so that you can see your work. || They have different sizes. 13’3 and 15 inches are the most common. ||
 * Laser printer || Laser printers are very fast therefore are commonly used in offices. It prints the same way as photocopiers by fusing powdered ink (toners) onto the paper with heat and pressure. || It is very expensive if you decide to only print a small amount, vice versa.
 * Ink-Jet printer || Ink-jet printers are cheaper alternatives for laser printers. They are usually used at homes where not a lot of document needs to be printed. They heating up the ink inside the cartridge as it flows through the nozzle; this process causes a droplet of ink to form. The droplet forms a part of the printout. || After printing, you should not touch the printed words because it might still be inky. ||
 * Digital projector || Digital projectors are devices, which connects to a computer and projects the output of the computer on to a wall or an electric whiteboard. The project can be held permanently or placed on a stand. They’re mainly used in offices and schools. || It creates a lot of heat when it is operating so it is best to have it hanging down from the ceiling or placed on a stand. ||
 * Plotter || Plotters draw or prints images by using a pen that is connected to and controlled by a computer. The pen can be moved in different directions and moved across the paper to draw longer lines. || They can be used to draw on big sheets such as for maps and big posters. ||
 * Speakers || Computers are fitted with a sound card so that it enables sound to be output through external speakers. The external speakers can produce very loud sounds. || The sound quality is higher than internal speakers (the ones that produce the beeping sound) ||
 * Headphones || Headphones are small loud speakers, which are worn over the ears. They are connected to computers, radios of MP3 players by either with a wire or connected wirelessly by Bluetooth or WiFi. || Good quality headphones block out the noise of the surroundings. ||
 * LED Lights || LED is short for Light Emitting Diodes. They respond to electrical signals which tell them when to switch on and off. || They come in a variety of colours and shapes.