Answer:
Explanation:
A computer virus is a form of malicious software that piggybacks onto legitimate application code in order to spread and reproduce itself.
Like other types of malware, a virus is deployed by attackers to damage or take control of a computer. Its name comes from the method by which it infects its targets. A biological virus like HIV or the flu cannot reproduce on its own; it needs to hijack a cell to do that work for it, wreaking havoc on the infected organism in the process. Similarly, a computer virus isn't itself a standalone program. It's a code snippet that inserts itself into some other application. When that application runs, it executes the virus code, with results that range from the irritating to the disastrous.
Computer virus symptoms
How can you tell if a virus has slipped past your defenses? With some exceptions, like ransomware, viruses are not keen to alert you that they've compromised your computer. Just as a biological virus wants to keep its host alive so it can continue to use it as a vehicle to reproduce and spread, so too does a computer virus attempt to do its damage in the background while your computer still limps along. But there are ways to tell that you've been infected. Norton has a good list; symptoms include:
Unusually slow performance
Frequent crashes
Unknown or unfamiliar programs that start up when you turn on your computer
Mass emails being sent from your email account
Changes to your homepage or passwords
The command to add a Venn Diagram or a process chart on PowerPoint Online is to select the Insert tab, then select the SmartArt button, and there is the process charts listed under Process. But the Venn Diagram is listed under List.
i dont have enough information to awnser this
Answer:
Look up Charles Babbage. He built a machine that is viewed as the predecessor of the modern computer.
Answer:
The corrected code is as follows:
import java.util.Scanner;
public class U2_L4_Activity_Two{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
String str1 = scan.nextLine();
String str2 = str1;
str1 = str1.toUpperCase();
System.out.println(str1);
System.out.println(str2);
}
}
Explanation:
This corrects the scanner object
Scanner scan = new Scanner(System.in);
This line is correct
String str1 = scan.nextLine();
This copies str1 to str2
String str2 = str1;
This converts str1 to upper case
str1 = str1.toUpperCase();
This prints str1
System.out.println(str1);
This prints str2
System.out.println(str2);
