Motherboard 
Power Supply
Graphics Card (gpu)
Storage (Hard Drive or Solid State Drive)
Processor (cpu)
RAM
That should be the main components. There are other non-essential ones. 
        
             
        
        
        
Using the computer language in python to write a function code that calculates the area of a rectangle.
<h3>Writting the code in python:</h3>
<em>def rectangle_area(base, height):</em>
<em> z = base*height  # the area is base*height</em>
<em> print("The area is " + str(z))</em>
<em>rectangle_area(5,6)</em>
See more about python at brainly.com/question/18502436
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Answer:
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Explanation:
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Answer: 
  Unit testing is the software testing method in which the individual source code are associate to control data. Unit testing basically test the code to ensure that the data or information meets its design. 
The aim of unit testing that each part isolate in the program and display the correct individual parts. 
Unit testing tool are efficient as they provide several benefits in the development cycle. The basic efficiency of unit testing tools depend upon its type of testing. Unit testing basically validate the units of source code in the program. 
For example: when the loop and function in the program work efficiently. 
 
        
             
        
        
        
"flat file"
A simple database program whose records have no relationship to one another<span>single</span>