Why do you need high speed?
Not so long ago, a 28.8 Kbps connection was considered high speed. Then came the 56K connection, 64 Kbps ISDN connections and finally “broadband” in the form of Cable, DSL, Wireless WANs and via Satellite. Today, without doubt anything below 128 Kbps cannot be considered high speed. The increased popularity of web based multi player games, content and multimedia rich web sites and streaming audio and video has rendered even this speed obsolete.
The term “broadband” has its origins in the data transfer capacity of the medium used to transmit the data packets. Dial up connections used the traditional copper phone lines and were limited by several factors such as technology and line noise. The phone lines were developed for voice transmission so naturally when it was used to transfer data it had its limitations. Then with the advancements in technology, the data transfer rate increased and the term Broadband came into existence. That is, a broader channel to transmit greater amounts of data in a given time.
High speed Internet Options:
The most common high speed Internet options are via Cable, DSL (Digital Subscriber Line) and Satellite.
DSL is provided via the regular copper lines used for telephones. DSL has advantages in that the line is not shared by other users. So if the number of users increase in your area, your speed does not suffer. Technical limitations mean that you have to be within 18000 feet of a telephone switching office to be able to get high speed DSL. DSL speed can vary depending on the quality of connection, distance from the switching office. DSL connections require a DSL modem that have an input for a phone line jack and an output (RJ45 or USB) to connect to your computer. Voice Calls and Internet usage can happen simultaneously as they occur on different frequencies.
Cable Internet refers to the Internet provided using existing cable TV systems. They are usually faster than a DSL connection but because it is a shared resource, the speed suffers with an increase in the number of simultaneous users. A cable modem has an input for a cable wire and a USB or a ethernet output that will go into your computer.
But not everyone can get Cable Internet or DSL. For such users there is Satellite Internet Access. This involves sending and receiving signals using a small dish pointed in a particular direction. While it allows Internet Access almost anywhere in the country, it is usually more expensive and slower than Cable and DSL. In addition the initial investments in the equipment is quite high compared to the other options.
Wireless WAN:
Another high speed Internet Access form gaining popularity is Wireless or Wi-fi LANs.
In this method, a particular location or “hot spot” has a high speed wired connection. They share this connection by means of Wi-fi that enables anyone with compatible equipment to be a part of the network. This is a highly flexible and versatile way of sharing the Internet as you do not wire yourself to a hub or a switch. All you need is a compatible Wi-fi Adapter which is built-in nowadays in the newer systems.
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