copyright

copyright is used to protect companies and stop people using there stuff. youtube and the music companies were in a war words because people were using there songs and putting them on youtube and they came to an agreement and youtube will pay them money so people can put the songs on youtube

anti virus software

anti virus software is used to prevent viruses and to stop them spreading from computer to computer and prevent other viruses such as trojans worms.

spam filter

a spam filter is used to sort out the junk mail you receive and sorts the order of the emails you receive sometimes by sender and tries to identify junk email to stop you getting it

content filter/proxy servers/acceptable use policy

a content filter acts on the body or the email subject to either classify reject or accept the email and is the most commonly used filter the most popular filter is the bayesian filter
proxy server is a server or an application program and the computer system and connects to the internet and can browse files and web pages also can be used by people seeking other resources from the server
the acceptable use policy is a set of rules you must follow for example i agreed to the john wheatley college acceptable use policy here is the web addresshttp://www.jwheatley.ac.uk/students/policies/ictpolicy.html

spoof email

a spoof email is sent to you by someone pretenting to be from the bank and usuallly asks for your bank details it is a fraud email and the sender hides his identity by prenting to be someone you know and he sends it to millions of email addresses. here is the type of email i was sent and you should be aware of