♥Input And Output♥

Ergonomic Keyboard

An ergonomic keyboard is a computer keyboard designed with ergonomic considerations to minimize muscle strain and a host of related problems . Typically such keyboard are constructed in a V shape , to allow right to left hands to type at a slight angle more natural to the human form .

Inkjet Printer

An inkjet printer is a type of computer printer that creates a digital image by propelling droplets of ink onto paper . Inkjet printers are the most commonly used type of printer and range from small inexpensive consumer models to very large professional machines , that can cost up to thousands of dollars .

Laser Printer

Laser Printer is a common type of computer printer that rapidly produces high quality text and graphics on plain paper . As with digital photocopiers and multifunction printers (MFPs) , laser printers employ a xerographic printing   process , but differ from analog photocopiers in that the image is produced by the direct scanning of a laser beam across the printer's photoreceptor . 

Magnetic-Ink Character Recognition

Magnetic Ink Character Recognition (MICR) is a character recognition technology used primarily by the banking industry to facilitate the processing of cheques . The technology allows computers to read information such as account numbers off printed documents . MICR characters are printed in special typefaces with a magnetic ink or toner , usually containing iron oxide . The use of magnetic printing allows the characters to be read reliably even if they have been overprinted or obscured by other marks such as cancellation stamps and signature .

Optical character recognition

Optical Character Recognition usually abbreviated to OCR is the mechanical or electronic translation of scanned images of handwritten , typewritten or printed text into machine-encoded text . It is widely used to convert books and documents into electronic files , to computerize a record-keeping system in an office , or to publish the text on a website . On the other hand , OCR makes it possible to edit the text , search for a word or phrase , store it more compactly , display or print a copy free of scanning artifacts and apply techniques such as machine translation , text-to-speech and text mining to it .

Optical-Mark Recognition

Optical Mark Recognition (OMR) is the technology of electronically extracting intended data from marked fields , such as checkboxes and fill-in fields , on printed forms . It is generally distinguished from OCR by the fact that a recognition engine is not required . This requires the image to have high contrast and an easily-recognizable or irrelevant shape . OMR technology scans a printed form and reads predefined positions and records where marks are made on the form . This technology is useful for applications in which large numbers of hand-filled forms need to be processed quickly and with great accuracy , such as surveys , reply cards  questionnaires and ballots .