Function to a Operation System: Operation system is a program so is standard on every computer. Its software so allow you to do different task on your computer. The Functions can be from copy text to delete files this is an easy example what the function to an Operation System might be. There may also follow other Smaller Softwares so are mainly build to the specific Operation System. etc of this is "Msconfig" and "taskmgr". This is also very big part to help you to perform all the tasks you want to do on your computer. All this stuff is made to help a user to do task in an easy way. The Under Operation System to "Windows" is "Command Prompt". This is an newest version of MS-DOS (Microsoft Disk Operation System). Operation Systems: WINDOWS Vista Professional. WINDOWS Vista Ultimate. WINDOWS Vista Home Edition. WINDOWS XP Home Edition. WINDOWS XP Professional WINDOWS 2000. WINDOWS ME. WINDOWS 98. WINDOWS NT. WINDOWS 95. Linux Mac The most used Operation system today is Microsoft. The problem with Microsoft is that all viruses and unwanted programs are made to infect those Operation Systems. If you use other Operation Systems such Linux you aren't in high risk as you are when you are using Microsoft. Another big problems with Operation Systems so aren't Microsoft is they haven't so much Softwares so are written to be used in other operation systems than Microsoft. Also its very important to hold your system up to date with the latest patches and updates since. In every Operation Systems there is bugs so can be used to even attack you in different ways. So if you want your system to be more secure and better you must update it. The Internet: Today's Comunity Internet is very Important thing to have also nearly every person have some kinda form of connection to the internet. Internet is used to share information with each other. This can be very useful but it can also be a big threat. Since this is how we can get Viruses and other unwanted programs on our computer. E-mail is most common way to get infected by a virus. E-mail is a Software so allows you to send and get messages from other users of the Internet. This is great way to Communicate with other people also can be very effectiv way to spread viruses. Another great risk of the Internet is also that you are nearly all the time being monitored what you are doing in different ways. Cookies and traffic(IP) is one way to track you on. So remember what ever you do on the Internet people are watching every single Click you take :p How does the Internet Work? To get Internet you must buy it from a ISPs (Internet Service Providers). When you have that up you can start walking around on the net. You also get your self an "Internet Protocol" this will be called your "IP". Also you need spesfic Software to view the Internet. This is called "Internet Browser" a Browser is supported with a HTTP (Hyper Text Transfer Protocol). This will allow you to visit sites around the globe. WWW. Stands for (World Wide Web). But how to host your own site? Well this can be done from your own computer or you can get a WebHosting Company to host it for you. This will indicate to set up a Client (Server). Its best to host site from WebHosting Company since they will normally be more secure and also you will have good Support. Its risk to set it up at home it can be every easy target to attack.