Computer Virus Computer Virus: Computer virus is one program or piece of code typically affect on the system such as a corrupting file,destroy itself. Following are the different categories of viruses: i) Boot Sector virus ii) Macro virus iii) Multipartic virus iv) TSR virus v) Stealth virus i)Boot Sector Virus: Its spread using physical media like floppy disks, M.B.R., Hard Drives etc,. Booting process means loading the operating system into the main memory. This virus replace a some booting files with their corrupted files. A boot sector virus is able to infect a computer only if the virus is used to boot up the computer. ii)Macro Virus: Macro is one special purpose command language. Macro virus is written in the m