There are numerous ways of connecting to the internet,the most common types I choose are ADSL and Wi-Fi.
What is a wifi connection?
Its a wireless networking technology that allows computers and other devices to communicate over a wireless signal. It describes all network components that are based on one of the 802.11 standards, including 802.11a, 802.11b, 802.11g, and 802.11n. These standards were developed by the IEEE and adopted by the Wi-Fi Alliance, which trademarked the name “Wi-Fi”.
Wi-Fi is the standard way computers connect to wireless networks. Nearly all computers have built-in Wi-Fi cards that allows users to search for and connect to wireless routers. Many mobile devices, video game systems, and other standalone devices also include Wi-Fi capability, enabling them to connect to wireless networks as well.
These devices may be able to connect to the Internet using a Wi-Fi signal.Wi-Fi connections only exists between the device and the router. Most routers are connected to a DSL or cable modem, which provides Internet access to all connected devices.
Diagram of a wifi connection.
Reference:
http://www.techterms.com/definition/wifi
What is an ADSL connection?
ADSL (Asymmetric Digital Subscriber Line).
ADSL is a high-speed transmission technology. It runs as an asynchronous system meaning the data rate allowed is not equal in both directions.
How ADSL Works?
ADSL works by isolating the bandwidth of copper telephone lines into diverse frequency ranges, known as carriers. This enables the accommodation and transmission of several different signals on the same wire. To accomplish this, ADSL uses a process called Frequency Division Multiplexing (FDM), the carriers carry each of a different parts of the same data transmitted simultaneously, This helps to create more available bandwidth and higher speeds for the end user. In this way, ADSL can accommodate simultaneous high-speed data and voice transmission, such as surfing the web, watching streaming video, fax and voice call, all on the same line.
Reference:
– http://www.orbit-computer-solutions.com/ADSL-Broadband.php#sthash.6TASTbHp.dpuf
Diagram of ADSL connection.
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