Table of Contents
What is computer virus short answer?
Definition: A computer virus is a malicious software program loaded onto a user’s computer without the user’s knowledge and performs malicious actions.
What is computer virus and examples?
Examples of computer viruses Trojans – As in the myth, a Trojan is a virus that hides within a legitimate-seeming program to spread itself across networks or devices. Ransomware – Ransomware is a type of malware that encrypts a user’s files and demands a ransom for its return.
What is a computer virus Class 7?
Answer. Computer virus is a computer program which runs on any computer system without the user’s knowledge. It is a malicious code that has the ability to duplicate and sends copies of itself to other computers through the Internet.
What do computer viruses do?
A virus can damage programs, delete files and reformat or erase your hard drive, which results in reduced performance or even crashing your system entirely. Hackers can also use viruses to access your personal information to steal or destroy your data.
What is a computer virus Class 8?
A computer virus is a kind of malicious computer program, which when executed, replicates itself and inserts its own code. When the replication is done, this code infects the other files and program present on your system.
What is hardware virus?
A Hardware Trojan (HT) is a malicious modification of the circuitry of an integrated circuit. A hardware Trojan is completely characterized by its physical representation and its behavior. The payload of an HT is the entire activity that the Trojan executes when it is triggered.
What are viruses Class 9?
Viruses are non-cellular, microscopic infectious agents that can only replicate inside a host cell. From a biological perspective, viruses cannot be classified either a living organism or non-living.
What is computer virus 11th class?
How do you check if computer has a virus?
Another way to detect if your system is having virus is through computer programs. Run programs, if your program takes longer time to load or run extremely slow in performing its operation then it clearly indicates virus has infected operating system of your system.
How do you get virus off your computer?
Note that if you know that you have just gotten a virus, do not click on any part of its screen. Instead, shut down you monitor and press your tower’s off/on button for four seconds until it shuts itself down. This action shuts down your computer without saving–meaning that the virus has not been saved, either.
What are the effects of viruses on a computer?
Another main effect of computer viruses is the modification of files on a hard drive or other writable media. Seeing new and unknown files, folders or applications appear on a computer’s hard drive is one possible sign of a computer virus. Another possible effect is the modification of files.
What causes a computer virus?
The main cause of computer viruses is putting an infected USB flash drive into your computer, opening an infected email, going to websites that are dangerous, and downloading infected files Some viruses disguising them self’s as pop-ups.