What are the Types of Internet Connection??

What is Internet?

Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite(TCP/IP) to serve billions of users worldwide. The term "Internet" was originally coined in the 1970s. At that time, only the very meager beginnings of a public global network were in place. Throughout the 1970s, 1980s, and 1990s, a number of smaller national networks like ARPANET, BITNET, CSNET, and NSFNET evolved, merged, or dissolved, then finally joined with non-US networks to form the global Internet. It was conceived by the Advanced Research Projects Agency(ARPA) of the U.S. government in 1969 and was first known as the ARPANET. The original aim was to create a network that would allow users of a research computer at one university to be able to "talk to" research computers at other universities. Today, the Internet is a public, cooperative, and self-sustaining facility accessible to hundreds of millions of people worldwide.

Types of Internet Connection:

1. Dial UP: Dial up is also called as a Analog connection. Using a modem(Modulator Demodulator Device) connected to your PC, users connect to the Internet when the computer dials a phone number( which is provided by your ISP) and connects to the network. Dial-up connections need a modem to connect to the internet and you pay for a call each time you dial-up. Dial-up connections are really slow compared to broadband, and are usually too slow for streaming video and making voice or video calls on the internet. The modem converts received analog data to digital and vice versa. Because dial-up access uses normal telephone lines the quality of the connection is not always good and data rates are limited. Typical Dial-up connection speeds range from 2400bps to 56kbps. Today, analog has been widely replaced by broadband( Cable and DSL).

2. ISDN( Integrated Services Digital Network): An international communications standard for sending voice, video, and data over digital telephone lines or normal telephone wires. ISDN supports data transfer rates of 64 kbps (64,000 bits per second). Send data over digital telephone lines or normal telephone wires. ISDN internet service was the improvement upon dial-up, and it also paved the way for DSL and cable-modem internet service thereafter. It can be considered the step of internet evolution that lies between dial-up and DSL/Cable. Modernizing internet use and bringing high-speed access inside the home, ISDN became the standard by which rival broadband internet service providers competed. There are two types of ISDN:

Basic Rate Interface(BRI): Consists of two 64-kbps B-channels and one D-channel for transmitting control information.

Primary Rate Interface(PRI): Consists of 23 B-channels and one D-channel (U.S.) or 30 B-channel and one D-channel( Europe).

3. DSL( Digital Subsciber Line): DSL is a family of technologies that are used to provide internet access by transmitting digital data over telephone lines. It is an always on connection because it uses existing 2-wire copper telephone line connected to the premise and will not tie up your phone as a dial-up connection does. There is no need to dial-in to your ISP as DSL is always on connection.

Types of DSL:

ADSL( Asymmetric Digital Subscriber Line): Supports data rates of from 1.5 to 9 Mbps from Internet to resident(Downstream), 16 to 640 Kbps from resident to Internet( Upstream). It is suitable for residence not for business.

SDSL( Symmetric Digital Subscriber Line): The speeds between receiving and sending data are the same in both directions. Full Duplex symmetric communication. Data rates up to 768 kbps in each direction. SDSL is called symmetric because it supports the same data rates for upstream and downstream traffic.

Milan Tomic

Hi. I’m Designer of Blog Magic. I’m CEO/Founder of ThemeXpose. I’m Creative Art Director, Web Designer, UI/UX Designer, Interaction Designer, Industrial Designer, Web Developer, Business Enthusiast, StartUp Enthusiast, Speaker, Writer and Photographer. Inspired to make things looks better.