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| | | | Encyclopedia of Mobile Computing and CommerceNowadays, mobile communication, mobile devices, and mobile computing are widely available. Everywhere people are carrying mobile devices, such as mobile phones. The availability of mobile communication networks has made a huge impact to various applications, including commerce. Consequently, there is a strong relationship between mobile computing... |
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| | | | Understanding Telephone Electronics, Fourth Edition (Newnes)Covers conventional telephone fundamentals! Explores how telephone systems operate and how digital electronics replace them. "Introduces state-of-the-art speech circuits, dialing, ringing, and central office electronics. Dissects modems and digital transmission techniques. Studies microcomputers and cellular phones. Helps readers increase... |
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