Tuesday, January 18, 2011

Input and output

Ergonomic keyboard

Its a keyboard that is design to minimize the muscle strain and solve the problems related to wrist ulnar deviation Mostly is at hand deformity, seen in chronic rheumatoid arthritis and lupus erythematosus, in which the swelling of the metacarpophalangeal joints causes the fingers to become displaced to the ulnar side.






Ink-jet printer

Ink-jet printer is a highly equipt printer that have more better quality of image that is printed.Have the ability to produce precise and sharp image quality and they're great for printing documents and spreadsheets. Inkjet Printers with capabilities that make them ideal for either personal or professional use. Enhancements like network connectivity options, elevated dpi, integrated memory and memory card slots among others have made Inkjets Printers extremely relevant in the discussion of today's innovative printers. For instance like canon,epson,hp and etc..

Laser printer.

The type of printer that utilize laser beams to produce image on a drum.It is the high quality of their print and their relatively low running costs.Output quality has improved, with 600 dpi (resouluton of image produce by printers) resolution becoming more standard, and build has become smaller, making them more suited to home use.







Magnetic-ink character recognition(MICR)

It is a common machine language specification for the paper-based payment transfer system.Well it is a character recognition technology adopted mainly by the banking industry to facilitate the processing of cheques. In addition to their unique fonts, MICR characters are printed with a magnetic ink or toner, usually containing iron oxide.







Optical-character recognition (OCR)

The electronic identification and digital encoding of printed or handwritten characters by means of an optical scanner and specialized software.It will do the scanning and comparison technique intended to identify printed text or numerical data. It avoids the need to retype already printed material for data entry







Optical-mark recognition.

It is basicly a type of machine that is specialized more in optical character recognition.It refers to the branch of computer science that involves reading a simple text from paper and translating the images into a form that the computer can manipulate it.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.



 

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