The Internet is simply a vast network that connects computers all around the globe. Through the Internet, individuals can communicate with others and share data from virtually anywhere with an Internet connection present. The Internet has become so popular that it is often referred to as the ‘Greenwich Village of the Web’. In a very short time, the Internet has been used for a variety of purposes ranging from social networking to business transactions. With so many people logging onto the Internet everyday, there are more computers connected to the network at all times.
There are different ways to access the Internet. A person can connect through a normal network such as a router or cable modem to a public Internet network or an internal network of a particular organization such as universities or colleges. Then there are other ways to get on the internet, including satellite broadband connections. Some phones also have the ability to access the internet, which is referred to as ‘3G’ technology. Finally, some computers are designed to access the internet wirelessly through a mobile broadband card, known as a Wi-Fi modem.
One of the most popular methods of accessing the internet through computers is through a digital subscriber line or DSL internet connections. This type of connection works by having a phone connection which is managed by the Internet service provider. The ISP will install a special connection in your home or office which allows you to have a digital telephone connection using a modem and phone jack. This is commonly referred to as ‘DSL’ or ‘Digital Subscriber Line.’ Digital Subscriber Line networks are extremely popular because they are highly reliable, highly secured, and cost very little in comparison to other types of computer networks.
Another method of getting onto the internet is through the TCP/IP network or protocol stack. This particular protocol stack is responsible for managing the complex communication protocols that move data between network elements. The TCP/IP protocol stack is based on IP networking and is able to transfer both text and audio information across networks. As with DSL, there are many benefits to using TCP/IP over other types of computer networks including: faster downloads, higher data transmission rates, as well as easier establishment of connections.
An even newer method of getting onto the internet is through the use of SOHO (store-and-forward) services. An example of this is the ‘asiwan’ application, which forwards emails from one computer to another. With the addition of new storage technologies, such as digital certificates, emails can be protected and safely delivered across the internet, using email servers such as the ‘mail servers’ or ‘outlooks’ on Windows-based machines. This also offers security benefits as there are multiple stages of authentication involved which can include verification of sender identity and encryption of the message before it is transmitted across the internet.
Another way of getting onto the internet is through the use of ‘local area networks’ (LANs). LANs connect computers within a certain defined area, often using physical wires that connect each computer to each other. Common examples of LANs are WANs, cable and DSL lines connecting between public switched telephone networks (PSTN), or home user access networks (House).
Another method that is widely used by people on the internet is the ‘traffic detection’ process, commonly referred to as ‘traffic monitoring’. In simple terms, a traffic monitoring uses the capabilities of the internet itself to trace where packets are going and who is sending them. For instance, a particular website may send thousands of requests every second from all around the world. When these are traced back to the exact location of the website’s operator, it is possible to determine where the website is located and what its purpose is.
The internet’s TCP/IP packet layer is made up of a series of levels. Each layer addresses a different aspect of a packet, such as port number, protocol, and security type. The layer also assigns an index that uniquely identifies each packet within the TCP packet, which allows for the tracking of how much data has been sent and received. The TCP layer also controls the security of the internet. For instance, all requests for online services have to pass through the ‘TCP port’ before being able to proceed, and there are several commonly used port numbers, including TCP port number 21 for secure internet connections.