It alters a process, runtime, program or anything important to make a PC work.
Yes.
no
a computer virus
No
Viruses are designed to harm the computer. These no such thing as a virus that does not cause harm to computers. If your virus scanner detected a virus, the damage is already done.
VIRUS
virus
No Spware and viruses both damage the computer. You need an anti spyware to remove spyware and a good anti virus to remove virus
I believe the question you are asking is "What is the part of a computer virus that does damage known as?" since the entire virus is an executable. This part is known as the payload.
A computer virus is something that may damage or delete files off your computer. it only comes when you download or open an attachment that you dont know.
Basically - No. A computer virus can possibly damage images you have downloaded to your computer, but not your camera. A virus does its business by running certain system commands in the operating system. The camera does not have the same type of operating system as a computer.
hardware, or software failure, more than likely not a virus.