Virus is a software or what ?
ADDED ON 23rd Mar,2004
URL /home/softbiz/public_html/faq/faq_qanda.php?id=51

Virus is essentially a software. Better say malicious piece of code to perform some forbidden operation like deleting all the data from a system. These are just an automated program, in DOS terminology these are called TSRs. (Terminated but Still Resident).