Internet has entered lives of millions of people and effectively transforming their complex tasks into simpler ones. Earlier doing research involves several tiring library trips. But, with the advent of internet it seems pretty easy.
An ISP is an enterprise that offers user’s access to the Internet and related services. They are lot of services they provide such as Internet transit domain name registration and hosting, dial-up access leased line access etc. The client then has access to the Internet, although the speed at which this data is transferred varies widely depending on the use of technology. They usually have infrastructures like communication setups, high-end servers and are connected to the national internet backbone through gateways with great bandwidth and reliable security protocols.
The internet data transfer speed can generally be divided into two categories, namely dialup and broadband. Dialup connections require the use of a phone line, and usually have connection speeds of 56KBPS or less. Broadband on the other hand, can be either ISDN Broadband wireless access, Cable modem DSL Satellite or Ethernet. Broadband provides always-on internet access and varies in speed between 64KBPS and 20MBPS. While file sharing and downloading music are gaining lot of popularity and the general demand for faster page loads, higher bandwidth connections are becoming more popular.
ISP's play a pivotal role in providing services beyond just Internet connectivity, such as e-mail, web hosting, and technical support. The ISP must perform all authentication and accounting functions necessary to provide access and then bill their users for it. ISPs have several multiple tier set-ups involving smaller ISPs to increase returns on investment and to efficiently manage a geographically large, high capacity network. Such a model with a network of smaller ISPs as customers of the larger ISP can be deployed to serve customers in locations where internet access could not have been provided by a single ISP.
Pricing, technology, and market share is the driving force behind the Internet economy and the Internet Service Providers had to survive some fierce competition. Nowadays, small ISPs began using wireless technology to provide broadband access.
Internet became fast and furious and ISPs were seen struggling to stay ahead as best possible. Broadband today has become the connection of choice. DSL and cable modem are the most popular broadband connections. Wireless Internet is still the preferred choice for mobile hand-held devices.
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