Perfect Computer Notes

What is an Antivirus Software? Antivirus Software is used to detect and remove Viruses, Worms, Trojan Horses, Ad-ware and Spyware etc. from a computer system. Antivirus Software has identifying information about known viruses. It has power to remove known viruses from the computer system, too. It runs all the time in computer memory. Therefore, as soon as, the antivirus software smells a security threat, it will identify the virus and alert the user about the virus. Antivirus Software will ask the user to opt for some action or automatically will try to clean the infection as soon as possible. Examples of Antivirus Software: AVAST ANTIVIRUS (TOP Free Antivitus)  SYMANTEC ANTIVIRUS ESET NOD32 ANTIVIRUS McAfee AVG ANTIVIRUS AVIRA ANTIVIRUS KASPERSKY ANTIVIRUS BITDEFENDER ANTIVIRUS F-SECURE ANTIVIRUS   Virus Definitions / Antivirus Updates / Virus Signatures Virus definitions contain the information about identification of the viruses, worms, Trojan horses, a

Who Invented The First PC VIRUS-Video Proof by F-Secure two Pakistani bothers, Amjad Farooq Alvi and Basit Farooq Alvi, invented this very first PC Virus Who invented the first PC Virus? First ever PC computer virus was named as Brain. In 1986,   two Pakistani bothers, Amjad Farooq Alvi and Basit Farooq Alvi, invented this very first PC Virus. Amjad farooq Alvi and Basit farooq Alvi  are currently running an ISP under the name of Brain Telecommunication Limited, in Lahore, Pakistan. First PC virus invented by Pakistani brothers amjad and basit Mikko Hypponen travelled to Pakistan to find the writers of the first PC virus. The first virus to infect PC computers was discovered in 1986. Intriguingly, the virus contained the contact details of its authors in Pakistan. 25 years later, in February 2011, Mikko Hypponen, Chief Research Officer at F-Secure, travelled to the city of Lahore in Pakistan to find the authors . The authors were identified as brothers Amjad Farooq Alv

A computer virus can be spread from one computer to another, due to the following reasons:        1. Portable Storage Media v> The storage media that is used to transfer files from one computer to another, is one of the biggest reason to spread virus in different computers. For example, in near past, people used foloppy disks to copy files from one computer to another. If the files being copied are infected with virus then virus will also be copied on the second computer. Similarly, computer virus can also be transfeerred from one computer to another, if we use USB flash drives, Zip Disks, Portable Hard Disks or Optical disks, different types of  Storage Cards etc. for file copy process.       2. Internet Nowadays, most viruses are spread through the internet. The internet has made viruses spread in a much quicker way. Computer viruses can attache to different files, making them infected. Therefore,  if your PC is infected with a virus then sharing of  infected fi