Wireless communications ar everywhere. raft somewhat the world regularly send and receive messages radiocommunicationly, that is, transmitted by the air. Three types of wireless communications include wireless pass on services, wireless internet find points, and global positioning systems.
People use planetary phones, PDAs, and other mobile devices to access textbook messaging, crying messaging, and picture messaging services [ (Davies 34-42) ]. Through text messaging services, users send and receive short text messages, which normally consist of fewer then 300 characters. Wireless instant messaging is an internet communication service that allows a wireless mobile device to exchange instant messages with one or more mobile devices or online personal computers. Users send graphics, pictures, video recording clips, sound files and short text messages with picture messaging service.
In many public locations, people connect to the internet through and through a wireless internet access point victimisation mobile computes and devices. Two types of wireless internet access points are hot spots and 3G networks. A hot spot is a wireless network that allows mobile users to check email, browse the web, and access any internet service as long as their computers or devices have the proper wireless readiness.
A 3G network, which uses cellular radio technology, enables users to connect to the internet through a mobile phone or compute equipped with an appropriate PC card.
A global positioning system (GPS) is a soaring system that consists of one or more earth-based receivers that accept and decompose signals sent by satellites in order to determine the receivers geographical location, according to shelly and Cashman [ (How a GPS Works) ].a GPS receiver is a handheld, mountable or insert device that contains an antenna radio receiver and a processor. numerous mobile devices, such as mobile phones and PDAs, have GPS capability built into the devices
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