About internet

Essay add: 28-10-2015, 20:33   /   Views: 127


During the last decade, the number of the internet users dramatically increased. The Demand of wireless internet increased accordingly. Internet users per fare having internet service very frequently during the day in order to cheek their emails or retrieving some particular information .most of the people have their laptops with belt in wireless network card these days, which provides them easy connection to any hotspots internet access. In this introduction we will intrudes some essential aspects about the networking in far structures. However, data Networking continues to evolve and more demand for a High-Speed Network Infrastructure has been growing at an alarming rate. More or less, WiMax focuses on solving the problems of point-to-multipoint broadband outdoor wireless networks. It has several possible applications, including last mile connectivity for homes and businesses and backhaul for wireless hot spots.


WiMax, meaning Worldwide Interoperability for Microwave Access, is a telecommunications technology that provides wireless transmission of data using a variety of transmission modes, from point-to-multipoint links to portable and fully mobile internet access. The technology provides up to 3 Mbit/s broadband speed without the need for cables. The technology is based on the IEEE 802.16 standard (also called Broadband Wireless Access). The name "WiMAX" was created by the WiMAX Forum, which was formed in June 2001 to promote conformity and interoperability of the standard. The forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL.

Types of Networks (LAN, MAN, WAN):LAN

A basic definition of local area network is connecting computer devices at small geographic area such as home, office, or certain buildings. Unlike Wide Area Network (WAN), LAN can handle greater data transfer rates with no telecommunication lines lease required. Two common technologies are currently used, Wi-Fi and Ethernet over unshielded twisted pair cabling. In the past, ARCNET, Token Ring and others were utilized for LAN.


Metropolitan Area Network (MAN) could be considered as a subtype of Wide Area Network (WAN). Thus, MAN is rather new class of network. it provide the same services as Internet Serves Provider (ISP), but for community users that are connected through large Local Area Networks (LANs). The main characteristics of MAN that distinguish it from the other type of network, such as LANs or WANs, could be summarized in three important features:

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