cit327 packets

Simplex transmission
- Occurs in only one direction
- Rarely used in wireless communication today except for broadcast radio and television
Half-duplex transmission
- Sends data in both directions but only one way at a time
- Ex: walkie-talkies
Full-duplex transmission
- Allows data to flow in both directions simultaneously
- EX: telephone
Switching

Involves moving the signal from one wire or frequency to another
Circuit switching
- Type of switching used by telephone systems
- A dedicated and direct physical connection is made between the caller and the recipient
Packet switching
- Used by data networks
- Data transmissions are broken into packets
- Each packet is sent independently
Packet switching advantages
- Allows better utilization of the network
- Allows multiple computers to share the same line or frequency
- If a transmission error occurs it would usually affects only one or a few packets

Author

ruddyo

64277

Card Set

cit327 packets

Description

circuit, packet switching

Updated

2011-02-05T17:26:31Z

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