Types Broadband

The days are gone when we had to install the modem (modulator demodulator) card inside a slot on the motherboard of our computers to be able to access the internet. Also known as dial up modems, these depended on the telephone copper line to send and receive signals from our internet service provider. The sped of internet connection was excruciatingly slow during those days with the highest speed available a crawling 56 bits per second. Things changed a lot after the arrival of broadband internet that allowed people to surf the net and download files at blazing speed. In simple terms broadband is a high capacity transmission method that uses a wide range of frequencies, enabling the transmission of a large number of messages at the same time. Even though many internet service providers still use copper wire for the last mile connection (optical fibre connects the hubs), the actual connection speed depends on the type of broadband connections we use including adsl broadband (asymmetric digital subscriber line).

Read more about adsl broadband

This technology allows users to send more data over the standard copper telephone lines. Here is a list along with a small description of the different types of broadband services available.

- DSL or digital subscriber line: This method too uses the telephone line to send and receive data. The advantage this method has over the old dial up connection is that one can use the same connection to make calls and access the net simultaneously. A splitter placed between the cable and the phone & modem separates the incoming signals, which are of two different frequencies, and transmits them to their respective destination (the modem and the phone)

- Cable modem: This broadband system operates over your existing TV cable and offers blazing fast internet connection, as the coaxial cable used by the cable TV providers has the ability to carry much more bandwidth compared to the telephone line.

- Fibre: Although this method is quite expensive as it employs sending and receiving signals from the ISP to the user via an optical fibre allows people to access blazing fast internet connections. Such connections allow you to access the net at speeds up to 1 GBPS (gigabyte per second). By the way, copper cables cannot support speed in excess of 100 MBPS.

- Wireless: In this connection, there is no physical connection between the transmitter and the receiver. The WiFi connection in your home and public places is a prime example of wireless internet and so is the method you use to access the internet via your smartphones.

- Satellite: This is another costly method of accessing the internet and requires setting up a special dish antenna to receive and send signals through a satellite in the sky.

Why do people use broadband?

People use broadband, especially ADSL broadband to access the net and perform tasks like sharing files, uploading and downloading files, voice chat and video chat, internet telephone (Voice over the Internet Protocol), as well as for browsing the net, send and receive emails, and purchase goods through online stores.