Transcription of CELL-PHONE TECHNOLOGY - WikiEducator
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CELL-PHONE TECHNOLOGY - WikiEducator
CELL-PHONE TECHNOLOGYW ireless phones which receive their signals from towers. A cell is typically the area (severalmiles) around a tower in which a signal can be phones provide an incredible array of functions. Depending on the CELL-PHONE model, youcan: Store contact information Make task or to-do lists Keep track of appointments and set reminders Use the built-in calculator for simple math Send or receivee-mail Get information (news, entertainment, stock quotes) from the internet Play games Watch TV Send text messages Integrate other devices such as PDAs, MP3 players and GPS receiversA cell phone is afull-duplexdevice.
A single cell in an analog cell-phone system uses one-seventh of the available duplex voice channels. That is, each cell is using one-seventh of the available channels so it has a unique set of
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