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Communicating Digital Content : Wired and wireless networks and devices…
Communicating Digital Content
: Wired and wireless networks and devices
Communications Devices
any type of hardware capable of transmitting data,instructions & information between a sending device & receiving device
Broadband modem sends & receives data & information to & from a digital line
Cable Modem
(Digital Subscriber Line) DSL Modem
Wireless Modem uses mobile phone provider's network to connect to internet wirelessly
Wireless access point (WAP) is a central communications device that allows computers and devices to transfer data wirelessly
A router connects multiple computers or other routers togerher & transmit data to its correct destination on a network
some routers provide additional functionality
wireless router
broadband router
broadband wireless router
hub or switch is adevice that provides a central point for cables in a network
Transmission Media
carries one or more communications signals
broadband media transmit multiple signals simultaneously
amount of data,instructions & information can travel over tarnsmission media sometimes is called bandwidth
Latency is the time it takes a signal to travel from one location to another on a network
2 types
WirelessTransmission Media
Physical Transmission Media
Example : Twisted-pair cable
