Answer:
barcode reader is the correct answer
 
        
             
        
        
        
True. 
But then again, partly false. A .deb file (Debian, Ubuntu Linux) contains data, but that data needs to be installed and marked executable to make the software.
But i would still say true.
        
             
        
        
        
Answer:
Following are the solution to the given question:
Explanation:
Please find the graph image in the attachment file.
In the sequence, they recognize how modules are divided and elements were introduced in parallel. L(a,c) is thus going to also be 

It allows, ideally, to bring a thumbs up. 
 
        
             
        
        
        
Answer:
Top to bottom
Explanation:
A sequence diagram shows the sequence or the order in which the interaction between components takes place.
It places them in order of the occurrence of the events or interactions between the components or objects thus arranging these from top to bottom.
The sequence diagram shows the way an object in a system functions and the order it follows.