számítógépbl

A számítógépbl, or computer virus, is a type of malicious software designed to replicate itself and spread to other computers. It is a subset of malware, which also includes worms, Trojan horses, and ransomware. Computer viruses typically attach themselves to a legitimate program or file, allowing them to spread to other computers when the infected file is shared or executed. Once inside a system, a virus can perform various harmful actions, such as corrupting data, deleting files, or even taking control of the computer.

The first computer virus, known as Creeper, was created in 1971 by Bob Thomas at BBN Technologies. It was designed for the TENEX operating system and simply displayed the message "I'm the Creeper, catch me if you can!" on infected systems. The first virus to cause significant damage was the Elk Cloner, created in 1982 by Richard Skrenta. It infected Apple II computers and spread via floppy disks, displaying a message that read "Elk Cloner: The program with a personality. It will get on all your disks. It will infiltrate your computer and will not let go. Maybe it will eat your disk. Maybe it will be your last. Who knows?"

Computer viruses can be spread through various means, including email attachments, downloadable files, and infected USB drives. They can also exploit vulnerabilities in software or operating systems to gain unauthorized access to a computer. To protect against computer viruses, users should keep their software up to date, use reputable antivirus software, and exercise caution when opening email attachments or downloading files from the internet. Additionally, backing up important data regularly can help mitigate the impact of a virus infection.