Generations of Wireless Network
0G It is known as Mobile radio telephone, are the systems that preceded modern cellular mobile telephony technology.
1G The first generation of wireless telephone technology (mobile telecommunications). These are the analog
telecommunications standards that were introduced in the 1980s.
2G The second generation 2G cellular telecom networks were commercially launched on the GSM standard in 1991.
2.5G added data (GPRS) and 2.75G faster data (EDGE)
3G It is based on a set of standards used for mobile devices and mobile telecommunications use services and networks
that comply with the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International
Telecommunication Union.
3.5G faster data, added packet data onto CS architecture (HSPA)
4G It provides, in addition to the usual voice and other services of 3G, mobile broadband Internet access, for example to
laptops with wireless modems, to smartphones, and to other mobile devices.
4.5G is a grouping of disparate mobile telephony and data technologies designed to provide better performance than
4G systems, as an interim step towards deployment of full 5G capability.
5G It denotes the next major phase of mobile telecommunications standards beyond the current 4G/IMT-Advanced
standards.
INTERNET
It is the Biggest Network of computer networks on Earth.
It is the global system of interconnected mainframe, personal, and wireless computer networks that use
the Internet protocol suite (TCP/IP) to link billions of devices worldwide.
Vinton Gray is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-
inventor Bob Kahn and packet switching inventors Paul Baran and Donald Davies.
Internet Connection Types Wireless Internet Connection makes use
of radio frequency bands to connect to the
Dial-up connection uses telephone line to
internet and offers a very high speed.
connect PC to the internet. It requires a
modem to setup dial-up connection. Internet related Terms
ISDN is acronym of Integrated Services
Bandwidth is the capacity of an electronic
Digital Network. It establishes the
line, such as a communications network or
connection using the phone lines which
computer channel, to transmit bits per
carry digital signals instead of analog
second (bps).
signals.
Blog is information that is instantly
DSL is acronym of Digital Subscriber Line.
published to a Web site.
It is a form of broadband connection as it
provides connection over ordinary Bookmark is a way of storing your favorite
telephone lines. sites on the Internet.
Cable Internet connection is provided Cookie is the information created by a Web
through Cable lines. It uses coaxial cable server and stored on a user"s computer.
which is capable of transferring data at Domain Name is the part of a network
much higher speed than common telephone address which identifies it as belonging to a
line. particular domain.
Satellite Internet connection offers high Domain Name Server (DNS) converts
speed connection to the internet. There are between a machine name and a numerical
two types of satellite internet connection: IP Internet address.
one way connection or two way connection.
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