Computer

A computer printer, or more commonly a printer, produces a hard copy (permanent human-readable text and/or graphics) of documents stored in electronic form, usually on…

Webcams are small cameras, whose images can be accessed using the World Wide Web, instant messaging, or a PC video conferencing application. The term webcam…

Digital camera is a camera that takes video or still photographs, or both, digitally by recording images on a light-sensitive sensor. Many compact digital still cameras…

Prime purpose of this lecture is to present on Computer Input Device: Electronic Point of Sale. Point of sale or point of service (POS or PoS) can…

Basic purpose of this lecture is to present on Computer Input Device: Microphone. A microphone, sometimes referred to as a mike or mic, is an acoustic to…

Optical Mark Reader is a reader that detects marks in a certain position on a piece of paper. In this method, special printed forms are…

General purpose of this lecture is to present on Magnetic Ink Character Reader. It is a technology used to verify the legitimacy or originality of paper documents,…

Optical Character Recognition or OCR is the process where images of letters can be entered into the computer as data using a scanner or other…

The aim of this lecture is to present on Bar Code Readers. A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like…

A magnetic stripe card is a type of card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band…

A graphics tablet or digitizing tablet, graphics pad, drawing tablet is a computer input device that allows one to hand-draw images and graphics, similar to…

Light Pen is an input device that utilizes a light-sensitive detector to select objects on a display screen. It is a computer input device in the form of a light-sensitive wand used…