Optical Character Reader
Optical Characters is a technology that lets you convert different type of documents, such as a scanned printer documents, PDF files or images captured/taken by… Read More »Optical Character Reader
Barcode Readers
What it is A barcode reader or barcode scanner is an electronic device that reads printed barcodes to a computer, by translating optical impulses into… Read More »Barcode Readers
Tracker ball
Max Newiss and Lloyd Thompson A tracker ball is computer cursor control device. The user can roll the ball to navigate around the screen. The… Read More »Tracker ball
Dot matrix printer
A dot matrix is a type of printer that produces characters and illustrations by striking pins against an ink ribbon to print closely spaced dots… Read More »Dot matrix printer
Graphics tablet
Uses: An input device consisting of a flat, pressure-sensitive pad which the user draws on or points at with a special stylus, to guide a… Read More »Graphics tablet
Graph Plotters
What it is: Plotters are a specialist kind of printer which are able to draw high quality images on very large pieces of paper (for… Read More »Graph Plotters
video card
Video card A video card connects to the motherboard of a computer system and generates output images to display. Video cards are also refereed to… Read More »video card
Sensors
A sensor is a device that converts a real-world property (e.g. temperature) into data that a computer can process Examples: Sensor What it Detects Temperature… Read More »Sensors