1.2 ONLINE ETHICS: A set of principles and morals
governing peoples behaviour relating to the internet
and digital devices
2 How the internet works
2.1 Computer networks
2.1.1 A computer network is a collection of
computers that have been linked together so
that they can share data, files and software
2.1.2 Computers in a network are joined together
by cables or radio waves allowing the data to
move between each computer.
2.1.3 Computers that are located in the same building or
fairly close together are usually connected to form a
local area network (LAN). Computers that are a long
distance apart, in a different town or country are
networked to form a wide area network (WAN).
2.1.4 A file server is a powerful
computer that can store many
files or programs which often
controls the other computers
and allows users to access their
hardware from any machine on
the network. It also allows users
to share files with one another.
2.1.5 In order to log onto a computer network,
you need a user name and a password.
A single computer on a network is
known as a password.
2.2 Different networks
2.2.1 Star network
2.2.2 Bus network
2.2.3 Ring network
2.2.4 Network interface card (NIC) is an
expansion board which s inserted into a
computer to allow it to connect to a network
2.2.5 A peer to peer network are
computers that are networked
without a central server