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cell, lines, microprocessor, signals, flash, emails, antenna, movement
a cellular phone {or mobile phone) is designed to give the user freedom of ( while using a telephone. it uses (2) to communicate between the phone and the (3) . the server area is divided into smaller areas called cells and an antenna is placed within each cell and connected by telephone ( . these lines connect cellular phones to one another: a computer selects the antenna closest to the telephone when a call is made. if the phone moves to one serving ( to another, the radio signal is transferred to the actual cell without interrupting the conversation.the circuit board is the heart of the system. a chip translates the outgoing
and incoming ( analogue to digital and back from digital to analogue. the (7) handles all the functions for the keyboard, the display and the loudspeakers, and it controls the signal to the base station.
other ( memory chips provide storage for the operating system.