Answer:
In Java:
import java.util.*;
public class Main{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String isbn;
System.out.print("First 1:2 digits: ");
isbn = input.nextLine();
if(isbn.length()==12){
int chksum = 0;
for(int i = 0; i<12;i++){
if((i+1)%2==0){ chksum+= 3 * Character.getNumericValue(isbn.charAt(i)); }
else{ chksum+=Character.getNumericValue(isbn.charAt(i)); } }
chksum%=10;
chksum=10-chksum;
if(chksum==10){
System.out.print("The ISBN-13 number is "+isbn+"0");}
else{
System.out.print("The ISBN-13 number is "+isbn+""+chksum); } }
else{
System.out.print("Invalid Input");
} }}
Explanation:
See attachment for explanation where comments are used to explain each line
Answer:
Maybe
Explanation:
If you are unsure if a website is safe look for signs. If its asking you to allow advertisement then no. I suggest you download a VPN before going to the website just to be safe
Answer:
True
Explanation:
Embedded operating systems are operating systems which supports hardware which is not a computer and allows the hardware to perform its task.
An example of a device with an embedded operating system is an SD card. The operating system on the card allows the card to be readable by the computer which its is plugged to.
Other examples of hardware with embedded systems are traffic lights, digital televisions, ATMs, point of sale (POS) and digital cameras.
The correct answer is P2P or peer-to-peer servers.
Hope I helped ;)
Answer:
The old cathode Ray tube technology was replaced by the less bulkier and more modern liquid crystal display and LED technology.
Explanation:
The old cathode ray tube uses the principle of electrical discharge in gas. Electrons moving through the gas, and deflected by magnetic fields, strike the screen, producing images and a small amount of X-rays. The tube required more space, and consumed more electricity, and was very bulky. The modern technologies are more compact and consume less power, and can been designed to be sleek and less bulky.
