Cẩm nang dữ liệu không dây P17

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Cẩm nang dữ liệu không dây P17

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CONNECTIVITY Cut the cord. Right now. Unfortunately, simply buying wireless data devices is the least of the problems, especially on packet networks. Actually getting applications to execute over wireless communications links leads to dozens of developmental barriers. Hardware, software—even airtime service providers—deliver some application assistance with their products, but the range of offerings, while clearly related, is far from uniform and is never enough. .urther, the terminology is often blurred. One company’s toolkit is another’s middleware or operating environment or platform. Packet systems are the least uniform and most complex....

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