Wednesday, January 29, 2020

Transmission media and it's types (TU BCA NOTES)

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Transmission Media


  1. Transmission media the pathway network entities used to connect each other.
  2. Computer transmission media includes
  • guided media
  • unguided media
Guided  media
    Image result for transmission media
  1. Guided media transmits signals by sending electricity or light over a cable or wire
  2. It uses a cabling system that guides the data signals along a specific path.
  3. The data signals are bounded by the cabling system so it is also called bounded media.
  4. Examples:twisted-pair wire,co-axial cable,fiber optics cable.
Un-Guided media
  1. Un-guided transmission media consists of a means for the data signals to travel but nothing to guide that along a specific path.
  2. It transmits data through the open air.
  3. Examples: radio waves ,infrared signals and earth and satellite based microwaves.