Cable provider Write For Us – As its name indicates, an ISP or Internet Service Provider (Internet Service Provider) is used to identify companies that provide Internet access to homes and other businesses.
In other words, you can have the most powerful computer in the world with a brand new network card and your home or office wired with fiber optics, which without an ISP, you won’t be able to navigate. And to navigate, it is necessary to pay a fee to one of these providers.
The same happens with Smart TVs and audiovisual content platforms like Netflix or Prime. If you don’t have a contract with an ISP, it will be impossible to stream a single episode.
An ISP is your gateway to the Internet and everything you can do online: send emails, buy in virtual stores, make video calls, or simply search Google.
How does an ISP work?
Basically, an ISP deploys a telecommunications network that connects to other networks.
There is a hierarchy of providers based on the network level to which each ISP connects. The lowest level called Tier 3 and connects private business networks and personal computers with Tier 2 ISPs. These have local or national coverage and can connect to each other or to Tier 1 ISPs. Which are the ones with an international scope.
Each country has its own tier-one providers; in many cases, these are directly controlled by the government. This allows an entire nation to be isolated from the network anytime.
In the United States, Tier 1 providers are AT&T, Verizon, Sprint, CenturyLink, Level 3 Communications, Verio, and Cogent Communications. In China, they are China Unicom and China Telecom. Hong Kong has its Tier 1 providers: PCCW, PacNet Global, and Reach Networks. In Japan, Tier 1 providers are Japan Telecom, Nippon Telegraph and Telephone, Internet Initiative Japan, KDDI Corporation, and so on, with each country.
In theory, service providers at this level can reach any Internet region, but they must make agreements with other Internet service providers. However, in practice, such contracts are not always clear or public, making it difficult to determine exactly how many Tier 1 providers exist.
What types of ISPs are there?
In the primary days of the Internet, the only ISPs authorized to provide connections were government agencies, research companies, and universities. Over the years and with the expansion of the network, ISPs have multiplied, although these are primarily telecommunications companies.
Most Internet Service Providers offer different types of Internet Service Provider connections depending on the number of users and email addresses needed, the speed of the link, or the amount of free space on the web. Some types of ISP are:
Dial-up providers
A few years ago, the most common way to connect to the Internet was by dialing a telephone line using a modem. With the advent of fiber optics and other more advanced Internet connection types, dial-up ISPs have become obsolete. Although it is one of the slowest Internet connections, some dial-up Internet service providers provide accelerators that use web page caching and content compression to increase data transfer speeds. Not surprisingly, it is one of the cheapest types of ISPs.
DSL access providers
Relations became very popular after the modem connection, DSL, or Digital Subscriber Line. This connection is made through a high-speed modem connecting to most homes’ copper wire. The disadvantage of this type of connection is that the speed can vary from several hundred kilobits per second (Kbps) to millions of bits per second (Mbps) and is highly dependent on the physical distance between the subscriber’s connection and the ISP location.
Cable access providers
A cable ISP offers Internet access through a coaxial cable, like the one in the television outlet. This connection also requires a modem, which can usually be rented from your Internet service provider or purchased from a computer dealer. The advantage is that money can be saved by combining Internet and television services.
Wireless Broadband Providers
This type of connection is often used in large areas without cable infrastructure. These ISPs provide high-speed Internet through links created with radio frequency antennas, similar to traditional television.
Satellite access providers
Like wireless connections, Internet access via satellite connections is used in remote areas without underground cables or antenna infrastructure.
Satellite connections tend to have breakneck download speeds but prolonged upload speeds.
fiber optic providers
It is currently the type of connection deployed more rapidly, mainly in urban environments.
The fiber optic connection offers high speeds in all services and makes it possible to supply the service to many customers with a single cable.
What is the difference between ISP and Hosting?
In addition to Internet access, ISPs offer a variety of services to their customers, such as telephone lines or cable television. Sometimes they provide web hosting services, allowing users to create and maintain personal web pages.
However, it is necessary to differentiate the company that provides the connection service from those dedicated almost exclusively to domain name registration and web page hosting. This type of company commonly known as a hosting company or hosting provider.
In the end, hosting companies are also clients of ISPs, and they connect their server infrastructure to the networks they provide. Apart from domain registration and hosting, hosting companies offer services such as backups and email in environments protected by firewalls and with several connections to different ISPs to ensure that these services work 24 hours a day.
Conclusion
ISPs are network nodes that comprise the vast array we call the Internet. Ultimately, we can conclude that without the ISPs, the network networks in which many of us currently work, interact and entertain ourselves would not exist.
As always, we hope this content has interested you, and if you have any questions, feel free to leave us a comment.
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