Saturday, December 8, 2007

Virus

1. Boot virus - every time we open computer, our operating system will read and load this virus into memory unit and can spread to any disc
2. File virus-attached with program file. Start working when we open this file
3. Macro virus-attached with document file, capable to use macro automatically
4. Trojan-attached with E card, E mail, Internet download program
5. Worm- rapidly destroyy your computers

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