Answer:
Sir William Crookes invented the cathode ray tube in 1878, but these discoveries took many years to merge into the common ground of television. His mechanical system used a scanning disk with small holes to pick up image fragments and imprint them on a light-sensitive selenium tube. A receiver reassembled the picture.
Answer:
import java.util.Scanner;
public class ANot {
public static void main(String[] args) {
Scanner in = new Scanner (System.in);
System.out.println("How many cookies did you eat today");
int numOfCookies = in.nextInt();
double numCalories = (numOfCookies*300)/4;
System.out.println("The total number of calories you consumed in "+numOfCookies+" cookies is " +
" "+numCalories);
}
}
Explanation:
This code is implemented in Java.
- We know from the question that 4 cookies contain 300 calories
- Therefore number of calories consumed = (number of cookies eaten*300)/4
- To implement this in java we used the scanner class to prompt user for the input
- save the input to a variable and write mathematical expression for the number of calories consumed
- Then output the result
There are ways to break into the boot cycle of every machine, you could use one of them. Hold down modifier key[s] so that it boots differently or you may get a menu to select boot options.
A specific answer is OS/firmware dependent.
Answer:
People have been ringing the death knell for email on and off for a few years now. But should we be listening?
The latest peal came from French IT company Atos, which declared that it would phase out internal emails by 2013. And for reasons we’ll all recongize: too much time spent dealing with too many emails, of which too few are useful and too many are spam. CEO Thierry Breton said his staff would instead use good old face-to-face communication, as well as instant messaging (IM) and social media tools.
Answer:
A PC such as a notebook computer.The evil twin gets the encrypted frame from the affected host,A VPN encrypts a frame with its own VPN key.
Explanation:
The evil twin after initial association when the victim client will establish a secure wireless connection with the victim client. The connection uses a key client-EF for encryption such that when the host transmits an encrypted frame it is transmitted to the evil twin. A VPN is an encrypted virtual private network used to access networks that are not trusted. The client encrypts a frame with a VPN key (Key Client-Server) which it shares with the server. The frame is further encrypted by the key it shares with the evil twin (Victim Client-ET) The evil twin will then receive a double encrypted frame. However, it will only be able to decrypt the Victim Client-ET key but not the VPN key hence it will not be able to read the message sent through the frame.
