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Encyclopedia > Dot matrix

A dot matrix is an array of dots used to generate characters, symbols and images.

Typical uses are all modern %20%20%20A%20computer%20printer%20is%20a%20computer%20peripheral%20device%20that%20produces%20a%20hard%20copy%20(permanent%20human-readable%20text%20and%2For%20graphics%2C%20usually%20on%20paper)%20from%20data%20stored%20in%20a%20computer%20connected%20to%20it.%20%20%20... computer printers and most digital %20%20%20A%20display%20device%20is%20a%20device%20for%20visual%20presentation%20of%20images%20(including%20text)%20acquired%2C%20stored%2C%20or%20transmitted%20in%20various%20forms.%20... display devices this includes bus destination displays. In printers, the dots are usually the darkened areas of the paper. In displays, the dots may light up, as in an %20%20%20%20%20%20Various%20light-emitting%20diodes%20(5%20mm%20reds%2C%203%20mm%20greens%20and%20yellows)%20%20%20A%20light-emitting%20diode%20(LED)%20is%20a%20semiconductor%20device%20that%20emits%20incoherent%20monochromatic%20light%20when%20electrically%20biased%20in%20the%20forward%20direction.%20... LED or %20%20%20The%20cathode%20ray%20tube%20or%20CRT%2C%20invented%20by%20Karl%20Ferdinand%20Braun%2C%20is%20the%20display%20device%20used%20in%20most%20computer%20displays%2C%20video%20monitors%2C%20televisions%20and%20oscilloscopes.%20... CRT display, or darken, as in an %20%20%20%20LCD%20redirects%20here.%20... LCD. Other configurations of display elements that are simpler and thus easier and less costly to produce include %20%20%20A%20seven%20segment%20display%20(sometimes%20written%20as%207-segment%20display)%20is%20a%20form%20of%20display%20that%20predates%20the%20now%20ubiquitous%20dot-matrix%20displays.%20... seven segment displays, %20%20%20%20%20LCD%20fourteen%20segment%20display%20as%20seen%20on%20the%20HP-41%20range%20of%20engineering%20calculators%20%20%20A%20fourteen%20segment%20display%20is%20an%20optoelectronic%20type%20of%20display%20based%20on%2014%20segments%20that%20can%20be%20turned%20on%20or%20off%20according%20to%20the%20graphic%20pattern%20to%20be%20produced.%20... fourteen segment displays and %20%20%20%20%20Segment%20layout%2C%20showing%20all%2016%20segments.%20... sixteen segment displays, though these are capable of producing fewer patterns than dot matrix displays.

See also

  • %20%20%20A%20dot%20matrix%20printer%20or%20impact%20matrix%20printer%20normally%20refers%20to%20a%20type%20of%20computer%20printer%20with%20a%20print-head%20that%20runs%20back%20and%20forth%20on%20the%20page%20and%20prints%20by%20impact%2C%20striking%20an%20ink-soaked%20cloth%20ribbon%20against%20the%20paper%2C%20much%20like%20a%20typewriter.%20... Dot matrix printer

  Results from FactBites:
Dot matrix printer - Wikipedia, the free encyclopedia (2630 words)
A dot matrix printer or impact matrix printer refers to a type of computer printer with a print head that runs back and forth on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like a typewriter.
Each dot is produced by a tiny metal rod, also called a "wire" or "pin", which uses the power of a tiny electromagnet or solenoid to drive it forward, either directly or through small levers (pawls).
In the 1970s and 1980s, dot matrix impact printers were generally considered the best combination of expense and versatility, and until the 1990s they were by far the most common form of printer used with personal computers.
Dot-matrix printer - definition of Dot-matrix printer in Encyclopedia (764 words)
Each dot is produced by a tiny metal rod or "pin", which uses the power of a tiny electromagnet or solenoid to drive it forward.
Dot matrix printers used to be considered inexpensive, and until the 1990s the most common form of printer used with PCs.
Dot matrix impact printers remain in occasional use in devices such as cash registers, ATM printouts and in industry where a carbon copy is required although thermal printing has largely supplanted them even in these applications.
  More results at FactBites »



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