Information filter

It is a procedure taken to prevent the net user from reaching non- secured

sites. Any one can determine the type of information he wants to hide.

The importance of information filter:

Information Filter aims at protecting users from harmful and useless sites

Filters:

They are programmes that hide the non-secured sites from the users.

There is no filtering programme that can prevent completely the nonsecured

sites but they aim at limiting the possibility of reaching such

sites.

Precautions taken before dealing with the internet

Computers should be provided with anti-virus programmes to prevent

hackers from attacking computers.

These programmes should be updated - to get newer versions

- We must know many of the concepts of data, information and their

importance. They can help individuals and institutions succeed in their

work. Data accuracy leads to correct processing and this leads to correct

information.

We must recognize the following:

- Data and information Security

- Using original programmes-

- Viruses

Data and information security means keeping the secrets of (Data,

information, computers and the employees in an organization or institution).

- Protection should be available on :

- Personnal computers.

- School computers.

- Computer software.

- If the computers are connected to the internet, don't try to hack into your

friends' sets with the purpose of deleting their files because this is immoral .

Protecting Data and Information:

We also protect data and information through using original

programmes. This is very important because original programmes help us

keep data and information and do the correct processing.

Original programmes

- To have good protection, you should make sure that the used

programmes are original. To avoid law questioning, you should have

documents to prove that the programmes installed are original.

Viruses:

The virus is a small programme that can reproduce rapidly and spread. It

contains a group of orders that can destroy, delete programmes and data in

the computer.

Protection against virus should be on every personal or school

computer. You should not log into the internet or make a chat without

having a strong updated anti-virus programme.You must make sure that

your computer is viruses free.

You should not navigate through computers if you doubt that you

have a computer virus.

Remember

Data:

Data are what we feel by our senses. They are the primary raw materials for

an information.

Information:

It is the outcome of data processing either syntactically or

analytically to deduce the contents of data.

Information properties:

It should be precise, plentiful, developing, clear, modern, real, documnted ,

updated, objective and testable.

Mental property:

It means protecting the programmes you have designed according to certain

laws:

Copyrights and international agreements .

Licenses agreements:

On buying any programmes, you will find the licence agreeement enclosed

with the programme as follows:

* a paper printout.

* a printed page.

* a web page .

- The positive sides of information:

Information has an important and positive effect on the national security,

education, health, economy, the state's policy and even on our life in

general.

The Negative sides of information:

Information has also a dangerous negative side, for example satellites are

used for spying. They know no limits or privacies for nations. They can

hack on the sovereignty of nations. The information transmitted by Mass

Media, tranmit whatever they like of false information about nations and

people. They also penetrate the ideas and information into countries and no

one can stop or prevent them. The main aim here is economy.

Examples to show the negative sides of information:

- The internet.

- Hacking.

The world Net is called ( World Wide Web)

It links and carries data to many countries in the world. Anyone can

navigate through the internet easily.

Our computers are exposed to the following dangers when we log into

the internet:

1- Viruses

2- Lack of experience in dealing with the internet

3- Inaccuracy in using the internet.

Ways for avoiding Security dangers:

1- Use anti-virus programmes

2- Use the e-mail carefully.

3- Be careful when you install programmes from the internet.

4- Avoid any unknown programmes for you or that you lack experience in.

5- You should use very updated filter anti-virus programmes in dealing with

the internet .