1.3.4 Output Devices

• describe the principles of operation of a range of output devices, including: inkjet, laser and 3D
printers; 2D and 3D cutters; speakers and headphones; actuators; flat-panel display screens,
including Liquid Crystal Display (LCD) and Light-Emitting Diodes (LED); and LCD projectors and
Digital Light Projectors (DLP)
• describe how these principles are applied to real-life scenarios for example: printing single items
on demand or in large volumes; banks of digital displays; use of small screens on mobile devices;
smart boards