The Internet is a series of connected networks designed to allow high-speed communication between various organizations, companies and countries. The basic structure of the Internet is broken up between tier 1, tier 2 and tier 3 carriers.Know More
Tier 1 networks are backbone Internet providers that connect directly to the Internet. These companies have agreements with one another to allow for the free passage of traffic between them. Internationally, there are five Internet service providers (ISPs) that are considered tier 1. These are AT&T , British Telecom, Equant, InfoNet and MCI (now Verizon).
The next level of ISPs are tier 2. They are smaller, mostly regionally based, and they tend to provide ISP links between larger organizations. Tier 2 providers have peering agreements with the larger, tier 1 providers, but generally don't peer with each other. Examples of tier 2 providers include Level3, Sprint, and XO Communications.
The smallest level of ISPs are tier 3 providers. These providers generally supply Internet connectivity for homes and small businesses. They are regionally based and often peer with larger tier 2 and tier 1 providers to allow global Internet connectivity. Examples of tier 3 providers are Time Warner Cable, Verizon Fios, Google Fiber and Cablevision Optimum.Learn more about Internet & Networking
Uses of the Internet include checking weather and news reports, sending/receiving email, performing financial transactions, shopping, searching for jobs, playing games, listening to music and even taking classes electronically. The Internet is used daily by all sectors of society, including individuals, corporations and research institutions. The reasons for using the Internet vary based on several factors including gender and race.Full Answer >
The basic requirements for connecting to the Internet are a computer device, a working Internet line and the right modem for that Internet line. In addition, software programs such as Internet browsers, email clients, Usenet clients and other special applications are needed in order to access the Internet.Full Answer >
Disadvantages of using the Internet are loneliness, lack of face-to-face communication, poor conflict resolution, diminishing interpersonal skills, overdependence on technology, mood swings and physical problems such as painful wrists and arms and obesity. Potential financial loss is another possibility. People who use the Internet to carry out banking and other forms of financial transactions are at a risk of losing their money, as hackers are always on the prowl.Full Answer >
The Internet is good because it provides access to information on a 24-hour basis, allows for communication between people all across the world and allows for the information provided to be updated quickly.Full Answer >