Answer:
True
Explanation:
Computer virus is a malicious program which can replicate itself from one infected program to another program.
Very often computer viruses can spread throughout a computer system even before it is detected by an Anti-Virus software.
The transmission of computer virus is usually initiated by users themselves by transferring infected files to their computer or executing suspicious program from an unknown source.
A computer virus can cause issues such as loss of data, computer slow down, computer fails to boot as normal etc.
