Answer:
num = float(input("Enter a number : "))
ab = abs(num)
sqrt = float(ab ** 0.5)
print(sqrt)
Explanation:
1: Application
2: Presentation
3:Session
4: Transport
5:Network
6: Data link
7: Physical
Application is a Interface Layer and responsible Layer
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A window is a rectangular work area in the desk top that contains a program, text, files, it other data and tools.
Hope this helps!