An output device on the other hand, is any device that allows information from a computer to be transferred to the user, e.g. a computer monitor, speakers, printers, etc.
– Printers (inkjet printers, laser printers and 3D printers)
– Speakers make use of a digital to analogue converter (DAC) in which digital data is converted to an amplifier, which emerges as sound from the speaker that the user can recognise.
– Monitors today generally use liquid crystal display (LCD) technology. This means that the front layer of the monitor is made up of liquid crystal diodes that are grouped together in threes or fours, which are known as pixels (picture elements). Modern LCD monitors are also backlit using light emitting diode (LED) technology. This gives the image better contrast and brightness.
– Light projectors are used to project computer output onto larger screens. They are often used in presentations and in multimedia output.
