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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