communication channels or modes
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Transcript of communication channels or modes
BY:::Gurpreet Singh
COMMUNICATION DEVICES
COMMUNICATION
COMMUNICATIONS REQUIRES:
WIRELESS WIRED
WIRELESS
BROADCAST RADIO - for radios/television. CELLULAR RADIO - for mobile communications/cellular
telephones.
MICROWAVES - radio waves that provide high speed signal transmission.
COMMUNICATIONS SATELLITE - a space station hat receives microwave signals from an earth based station.
INFRARED – sends signal using infrared light waves.
TRANSMISSION MODES
• A) Asynchronous transmission
• B) Synchronous transmission
TRANSMISSION DIRECTION
• A) Simplex transmission
• B) Half-duplex transmission
• C) Full duplex transmission
COMMUNICATIONS DEVICES
MODEM
CABLE MODEM
MULTIPLEXER (MUX)
NETWORK INTERFACE CARD
REPEATER
ROUTER