- Ergonomic Keyboard
- Ink-Jet Printer
- Laser Printer
- Magnetic-Ink Printer
- Optical-Character Recognition
- Optical-Mark Recognition
Ergonomic Keyboard
- computer keyboard that separates the keys into two halves shaped like a wide "V"
- some have a fixed layout, while others are movable
- puts less stress on the hands and wrist and winds up being comfortable platform for typing, for most people.
- designed to to relieve sometimes painful conditions, minimize muscle strain and a host of related problems
Ink-Jet Printer
- forms an image by using electromagnetic fields to guide electrically charged ink streams onto the page.
- propels droplets of ink directly onto the medium
- uses cyan, magenta, yellow and black
Laser Printer
- produces high quality text and graphics
- uses a non-impact
- utilizes a laser beam to produce an image on a drum
- light of the laser alters the electrical charge on the drum wherever it hits
- the drum is then rolled through a reservoir of toner, which is picked up by the charged portions of the drum
- the toner is transferred to the paper through a combination of heat and pressure
Magnetic-Ink Character Recognition
- also known as MIRC
- character recognition system that uses special ink and characters
- used by banks to read unusual numbers and characters found on the bottom of checks
- provides a secure, high-speed method of scanning and processing information
- also known as OCR
- recognition of printed or written text characters by a light source and convert into ASCII code
- analyzes the light and dark areas of the bitmap in order to identify each alphabetic letter and numeric digit
- used to read retail price tag in departmental stores, in libraries to digitize and preserve their holdings and ect
Optical-Mark Recognition
- also known as OMR
- scans and senses the presence or absence of mark or character
- the use of "bubble sheets" for multiple-choice tests used by schools
0 Response to "Input and Output"
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