Laptops
Submitted by Never on August 22, 2011
- Category: Technology
- Words: 321
- Pages: 2
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Laptops
Wireless Communications
Wireless communications are everywhere. People around the world regularly send and receive messages wirelessly, that is, transmitted through the air. Three types of wireless communications include wireless messaging services, wireless Internet access points, and global positioning systems.
People use mobile phones, PDAs and other mobile devices to access text messaging, instant messaging, and picture messaging services [ (Davies 34-42) ]. Through text messaging services, users send and receive short text messages, which usually consist of fewer than300 characters. Wireless instant messaging is an Internet communications service that allows a...
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