Output devices

938 views
706 views

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
938
On SlideShare
0
From Embeds
0
Number of Embeds
479
Actions
Shares
0
Downloads
5
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Output devices

  1. 1. Output devices By Igor Dmitrievykh
  2. 2. Electronic paper • Electronic paper, e-paper and electronic ink are display technologies which are designed to mimic the appearance of ordinary ink on paper. Electronic paper displays reflect light like ordinary paper, theoretically making it more comfortable to read, and giving the surface a wider viewing angle compared to conventional displays. The contrast ratio in available displays as of 2008 might be described as similar to that of newspaper, though newly developed displays are slightly better. An ideal e-paper display can be read in direct sunlight without the image appearing to fade. Many electronic paper technologies can hold static text and images indefinitely without using electricity. Flexible electronic paper uses plastic substrates and plastic electronics for the display backplane. There is ongoing competition among manufacturers to provide full-color ability.
  3. 3. How does it work?
  4. 4. Uses
  5. 5. Plasma screen • A plasma display panel (PDP) is a type of flat panel display common to large TV displays 30 inches (76 cm) or larger. They are called "plasma" displays because the technology utilizes small cells containing electrically charged ionized gases, or what are in essence chambers more commonly known as fluorescent lamps.
  6. 6. Principles of working
  7. 7. Uses
  8. 8. Speech output • Speech output might include speech synthesis, headphones or speakers • Speech synthesis is the artificial production of human speech. A computer system used for this purpose is called a speech synthesizer, and can be implemented in software or hardware products. A text-tospeech (TTS) system converts normal language text into speech; other systems render symbolic linguistic representations like phonetic transcriptions into speech.
  9. 9. How is it working?
  10. 10. Uses
  11. 11. References • http://en.wikipedia.org/wiki/Electronic_paper • http://en.wikipedia.org/wiki/Plasma_display • http://en.wikipedia.org/wiki/Computer_speaker • http://en.wikibooks.org/wiki/A-level_Computing/AQA/Computer_Components,_ The_Stored_Program_Concept_and_the_Internet/Hardware_Devices/Output_ devices

×