Answer: D. He did not create a back up of his data.
Explanation: He lost his data, so he did not back it up in case he lost his laptop.
 
        
             
        
        
        
Answer: use this link :- https://www.file-extension.info/conversion/enw-to-pdf
Explanation:
 
        
                    
             
        
        
        
Answer:
Synchronous data transmission is a data transfer method in which a continuous stream of data signals is accompanied by timing signals (generated by an electronic clock) to ensure that the transmitter and the receiver are in step (synchronized) with one another. The data is sent in blocks (called frames or packets) spaced by fixed time intervals.
 
        
             
        
        
        
The <DEL> or <Delete> key makes the first character AFTER the cursor 
disappear, and everything after it then moves back one space to close up 
the hole.
Example:  
If I have this in my document ...                          Most trees are green.
And my cursor is after the 'a', like this:                Most trees a|re green.
Now, if I hit the <delete> key, it deletes the 
'r' after the cursor, and the hole closes up, 
and the cursor stays where it is:                          Most trees a|e green.
        
                    
             
        
        
        
Answer:
Technology has changed the world for the better.
Explanation:
Without technology, many of the things we take for advantage, such as, credit cards, calling people from far distances, heck even being able to call to across the world from where you are right now. Technology has revolutionized many things we use commonly on a day-to-day basis.