CELLULAR MOBILE COMMUNICATION

Balamurali
ืกืคืจ ื“ื™ื’ื™ื˜ืœื™
244
ื“ืคื™ื
ื”ื‘ื™ืงื•ืจื•ืช ื•ื”ื“ื™ืจื•ื’ื™ื ืœื ืžืื•ืžืชื™ืย ืžื™ื“ืข ื ื•ืกืฃ

ืžื™ื“ืข ืขืœ ื”ืกืคืจ ื”ื“ื™ื’ื™ื˜ืœื™ ื”ื–ื”

Aย cellular networkย orย mobile networkย is a communication network where the last link is wireless. The network is distributed over land areas called cells, each served by at least one fixed-locationย transceiver, but more normally threeย cell sitesย orย base transceiver stations. These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content. A cell typically uses a different set of frequencies from neighbouring cells, to avoid interference and provide guaranteed service quality within each cell

ืจื•ืฆื” ืœื“ืจื’ ืืช ื”ืกืคืจ ื”ื“ื™ื’ื™ื˜ืœื™ ื”ื–ื”?

ื ืฉืžื— ืœืฉืžื•ืข ืžื” ื“ืขืชืš.

ืื™ืš ืงื•ืจืื™ื ืืช ื”ืกืคืจ

ืกืžืืจื˜ืคื•ื ื™ื ื•ื˜ืื‘ืœื˜ื™ื
ื›ืœ ืžื” ืฉืฆืจื™ืš ืœืขืฉื•ืช ื”ื•ื ืœื”ืชืงื™ืŸ ืืช ื”ืืคืœื™ืงืฆื™ื” ืฉืœ Google Play Books ืœ-Android ืื• ืœ-iPad/iPhoneโ€. ื”ื™ื ืžืกืชื ื›ืจื ืช ื‘ืื•ืคืŸ ืื•ื˜ื•ืžื˜ื™ ืขื ื”ื—ืฉื‘ื•ืŸ ืฉืœืš ื•ืžืืคืฉืจืช ืœืš ืœืงืจื•ื ืžื›ืœ ืžืงื•ื, ื’ื ืœืœื ื—ื™ื‘ื•ืจ ืœืื™ื ื˜ืจื ื˜.
ืžื—ืฉื‘ื™ื ื ื™ื™ื“ื™ื ื•ืฉื•ืœื—ื ื™ื™ื
ื ื™ืชืŸ ืœื”ืื–ื™ืŸ ืœืกืคืจื™ ืื•ื“ื™ื• ืฉื ืจื›ืฉื• ื‘-Google Play ื‘ืืžืฆืขื•ืช ื“ืคื“ืคืŸ ื”ืื™ื ื˜ืจื ื˜ ืฉืœ ื”ืžื—ืฉื‘.
eReaders ื•ืžื›ืฉื™ืจื™ื ืื—ืจื™ื
ื›ื“ื™ ืœืงืจื•ื ื‘ืžื›ืฉื™ืจื™ื ืขื ืชืฆื•ื’ืช ื“ื™ื• ืืœืงื˜ืจื•ื ื™ (e-ink) ื›ืžื• ื”ืงื•ืจืื™ื ื”ืืœืงื˜ืจื•ื ื™ื™ื ืฉืœ Kobo, ืฆืจื™ืš ืœื”ื•ืจื™ื“ ืงื•ื‘ืฅ ื•ืœื”ืขื‘ื™ืจ ืื•ืชื• ืœืžื›ืฉื™ืจ. ื™ืฉ ืœืคืขื•ืœ ืœืคื™ ื”ื”ื•ืจืื•ืช ื”ืžืคื•ืจื˜ื•ืช ื‘ืžืจื›ื– ื”ืขื–ืจื” ื›ื“ื™ ืœื”ืขื‘ื™ืจ ืืช ื”ืงื‘ืฆื™ื ืœืงื•ืจืื™ื ืืœืงื˜ืจื•ื ื™ื™ื ื ืชืžื›ื™ื.
ื“ื™ื•ื•ื— ืขืœ ืชื•ื›ืŸ ืœื ื—ื•ืงื™

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