1.1 A computer or program which runs purely to serve the needs of other computers. It runs special
server software to service the requirements of the users (clients).
1.1.1 There are several types of servers, including file servers and printer servers on a local area
network (LAN), and web and email servers that manage communication with the internet.
2.1 The internet is essentially a huge client-server
system of interconnected computers which uses a
wide range of hardware.
2.1.1 A computer which uses the services provided by the server
3.1 A piece of hardware that connects two or more networks. In relation to the internet, data
from the ISP is sent into the network and the router then directs the data packets to the
3.1.1 The router also handles data travelling in the other direction. Routers can be described as
‘directors of traffic’ for the networks.
4 Connecting Backbone
4.1 The main connecting data routes between large networks on the
internet and smaller networks in Local Regions
188.8.131.52 A wired connection to a broadband supplier. Normally the connection is
via a network card in the computer. Cable users have an ethernet
connection from their computer to the network.
184.108.40.206.1 Broadband connections can give better
reception and are usually faster than
5.1 Used by wireless-enabled devices (computers, mobiles,
smartphones, etc.) to log in to the internet. Wireless is exactly
what it says; there are no wires to connect.
5.1.1 Can be used wherever there is a wireless hub which is
220.127.116.11 Dial Up
18.104.22.168.1 A wired connection via a conventional telephone line,
which needs a modem to convert signals to and from
analogue for transmission