Informatikos skaidrės. Computer Viruses. What is the Virus ?. How viruses work ?. How to recognize if your computer has a virus ?. Most important types of the Viruses. Trojan horse. The real viruses. Macro viruses. Logic Bombs. Time Bombs. Worms. The hidden viruses. Some facts about viruses. Statistics in Lithuania. How to fight with viruses ?. How to protect from viruses ?. Some most popular names of antivirus programs.