1.3 Normally, it is a location which contains all of the hardware
which allows internet users access to the internet.
1.4 An Internet Service Provider (ISP) may operate several
PoPs in their area to allow good access to the internet.
2.1 Network Access Point
2.2 An interchange between networks
within the internet. It allows ISPs to
interconnect with each other.
3.1 Internet Protocol
3.2 This is the protocol used to
route packets of infromation
across the internet.
3.3 An induvidual unit of data which is carried across a network, including the internet. It is made up of
a header which identifi es the packet and a body which is the actual data message. It is one of the
functions of the Transmission Control Protocol (TCP) to organise an internet message into packets.
4.1 Tansmission Control Protocol
4.2 The protocol which takes data from a user’s
application program and passes it to the IP
for transfer across the internet. The reverse
operation is performed at the destination
computer, i.e. the TCP reassembles the data
(from individual packets) and forwards them
to the user’s application program. The close
relation with the IP means that the terms
are usually used in combination, i.e. TCP/IP.
5.1 File Transfer Protocol
5.2 A standard protocol which allows files to be transferred
between two computers on a TCP-based network.
5.3 It is commonly used to download
programs to your computer from
other servers and to upload web pages
that you have created to the server
that is hosting them on the internet.
6.1 Internet Service Provider
6.2 Direct connection to the internet would
be very costly and so ISPs provide a
cost-effective gateway for people and
organisations to get onto the internet.
6.3 In the UK there
are many ISPs,
with some of
being BT (British
Media and Sky.
6.4 ISP Services
6.4.1 In addition to providing a gateway to the internet, ISPs
normally provide additional services such as email.
6.4.2 Many also provide web space for the development
of websites, technical support and troubleshooting.