Input and Output
An ergonomic keyboard is a keyboard designed to minimize muscle strain and a host of related problems. There is no precise definition an ergonomic keyboard, it is more comfortable than a standard flat keyboard.
A type of printer that works by spraying ionized ink at a sheet of paper. It can produce copy with a resolution of at least 300 dots per inch ( dpi ). Some inkjet printers can make full color hard copies at 600 dpi or more. The price of ink-jet printers is lower than laser printers.
A type of printer that uses a laser beam to produce an image on a drum. The light creating an electrostatic image of the page onto a charged photoreceptor, which in turn attracts toner in the shape of an electrostatic charge. It produce better quality black text documents than ink-jets.
- Magnetic-ink character reader (MICR)
Magnetic Ink Character Reader (MICR) is an input device widely used by banks to process large volume of checks and deposit forms written everyday. It consists of special ink called magnetic ink. It is used to write characters on the check and deposit forms to be processed by an MICR.
- Optical-character Recognition (OCR)
Optical Character Recognition (OCR) is a process of converting printed materials into text or word processing files that can be edited and stored. It requires both hardware and software. The technology has enabled such materials to be stored using much less storage space than the hard copy materials.
- Optical-mark Recognition (OMR)
OMR technology scans a printed form and reads predefined positions and records where marks are made on the form. It is useful for applications in which large numbers of hand-filled forms need to be processed quickly and with great accuracy.
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