There Are Many Internet Service Providers To Choose From
by, 04-07-2012 at 12:51 AM (3982 Views)
An ISP (internet service providers) is a company that gives access to the Internet. These access ISPs connect their customers directly to the Internet. Hosting ISPs lease service space for smaller businesses and host other peoples servers. Transit ISPs provide large tubes to connect hosting ISPs to access ISPs.
As the story goes a long time ago the Internet began as a closed network between government research labs and relevant parts of universities. As it grew in popularity these colleges and universities began giving more members access. Thus commercial ISPs began to blossom. The very first commercial ISP was The World in Massachusetts.
Now, there are the ISPs that provide Internet services for us at home, and at work and even in the car. Some of the options are dial-up connections, DSL a digital subscriber line, broadband wireless, cable modem, fiber to the premises (FTTH) and Integrated Services Digital Network (ISDN). These are used by people at home and by small businesses.
These are the most common and you will pay a monthly fee for their usage. The system is such that it is possible for an Internet Service Provider that is located somewhere in Mexico to get quickly connected to an ISP in the U.S. E-mail, FTP and web-hosting services are usually provided by hosting ISPs. Their other services include virtual machines, clouds or physical servers through which customers are able to run their own custom software.
ISPs pay upstream ISPs for access to the Internet. Such an upstream ISP normally has a larger network and/or can provide the contracting ISP with access to parts of the Internet which they otherwise couldn't access. To understand this better when a single connection is set up to an upstream USP data can be transmitted to or from areas of the Internet which are beyond the home network.
ISPs may also be involved in peering. Multiple ISPs interconnect at peering points or internet exchange points (IXs) that allow the routing of data between each network and don't charge each other for the data that is transmitted.
Tier 1 ISPs are ISPs that don't require any upstream and have only customers. To ensure that data flows through the most efficient route and that upstream connections work reliably it is important to have network hardware, software and specifications as well as experienced network management personnel.
Some derivatives of ISPs are Virtual ISP (VISP) which is an operation that purchases service from another Internet Service Provider. This lets VISP clients get access to the Internet by making use of services and the infrastructure owned and operated by the wholesale ISP.
Free ISPs provide service which is free of any costs. Many of these free ISPs show advertisements while the user is connected. Other free internet Service Providers that are called freenets run on a non-profit basis and with a working volunteer staff.
Online you can find ISPs which provide services right in the area where you live and they inform you of what services they provide, and what kind of connections they offer to help you find the right Internet Service Provider for you and your particular needs.