Write about different internet connection technologies.
Answer: Internet is network of networks. There are different technologies to connect a computer to internet.
- Dialup Connection: A telephone lines is used to connect to internet. Telephone lines connected to computer through modern dials to the telephone connection to ISPs computer and gets connected. It is very slow connection.
- Cable: Cable provides and internet connection through a cable modern and operates over the cable TV lines. It is faster then dialup connection.
- DSL(Digital subscriber line): It is an internet connection that is always on. This used 2 lines so that phone line and internet line have separated connection. It uses a router to transfer date. DSL are of two types ADSL and SDSL.
- Wireless or Wi-Fi: It is most common types of internet connection which does not uses any physical connection. It uses radio frequency to transfer data.
- Satellite: satellite receives signal form earth station and throw back to the earth to receive for internet connection. It is delays connection as signal travels long distance.
- Cellular: Cellular technology provides wireless internet access through cell phones. The speed very depending on the provider. But the most common are 3G and 4G speeds.
- Fiber Optics: It transfer data in the form of light. It is the fastest media from internet connection.