Tuesday, 17 May 2016

THE HISTORY OF INTERNET


The Internet developed from the ARPANET, which was funded by the US government to support projects within the government and at universities and research laboratories in the US – but grew over time to include most of the world's large universities and the research arms of many technology companies. Use by a wider audience only came in 1995 when restrictions on the use of the Internet to carry commercial traffic were lifted.

In the early to mid-1980s, most Internet access was from personal computers and workstations directly connected to local area networks or from dial-up connections using modems and analogy telephone lines. LANs typically operated at 10 Mbit/s and grew to support 100 and 1000 Mbit/s, while modem data-rates grew from 1200 and 2400 bit/s in the 1980s, to by the mid to late 1990s. Initially dial-up connections were made from terminals or computers running terminal emulation software to terminal servers on LANs. These dial-up connections did not support end-to-end use of the Internet protocols and only provided terminal to host connections. The introduction of network access servers (NASs) supporting the Serial Line Internet Protocol (SLIP) and later the point-to-point protocol (PPP) extended the Internet protocols and made the full range of Internet services available to dial-up users, subject only to limitations imposed by the lower data rates available using dial-up.

Broadband Internet access, often shortened to just broadband  and  also  known as high-speed Internet access, are services that provide bit-rates considerably higher than that available using a 56  modem. In the US National Broadband Plan of 2009, the U.S. Federal Communications Commission (FCC) defined broadband access as "Internet access that is always on and faster than the traditional dial-up access", although the FCC has defined it differently through the years. The term broadband was originally a reference to multi-frequency communication, as opposed to narrowband or baseband. Broadband is now a marketing term that telephone, cable, and other companies use to sell their more expensive higher-data-rate products. Broadband connections are typically made using a computer's built in Ethernet networking capabilities, or by using a NIC expansion card.

Most broadband services provide a continuous "always on" connection; there is no dial-in process required, and it does not “hog” phone lines. Broadband provides improved access to Internet services such as:

    Faster world wide  web browsing
    Faster downloading of documents, photographs, videos, and other large files
    Telephony, radio, television, and videoconferencing
    Virtual private networks and remote system administration
    Online gaming, especially massively multiplayer online role-playing games which are interaction-intensive

In the 1990s, the National Information Infrastructure initiative in the U.S. made broadband Internet access a public policy issue. In 2000, most Internet access to homes was provided using dial-up, while many businesses and schools were using broadband connections. In 2000 there were just under 150 million dial-up subscriptions in the 34 OECD countries and fewer than 20 million broadband subscriptions.
 BY Alphonce Bhoke BAPRM 42527

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