Perfect Computer Notes

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

A computer virus is a program or software that can disturb normal working of a computer system. A computer virus may cause many types of damage to a computer system. A Computer virus can attache to files in memory or disk. When we copy infected files from one computer to another, virus is also copied. A Computer virsu can harm a computer system in the following ways: Disadvantages of Computer Virus 1. Damage of Data, Information and Software A Computer virus may damage data, information and software of the computer. Data is the most important part of an organization. For example, a bank totally depends on financial transactions and any loss of even a little data can be dangerous. Moreover, if computer virus corrupts files of a software, you will have to reinstall the software. 2. Deletion of Stored Files A Computer virus may delete important data files stored in a computer. 3. Format Hard Disks A Computer virus can delete all data on hard disk by formatting the har