Answer:
The solution code is written in Python 3:
- def modifyList(listNumber):
-     posCount = 0
-     negCount = 0
- 
-     for x in listNumber:
-         if x > 0:
-             posCount += 1
-         else:
-             negCount += 1
-     
-     if(posCount == len(listNumber)):
-         listNumber.append(max(listNumber))
-     
-     if(negCount == len(listNumber)):
-         listNumber.append(min(listNumber))
-     
-     print(listNumber)
- 
- modifyList([-1,-99,-81])
- modifyList([1,99,8])
- modifyList([-1,99,-81])
Explanation:
The key step to solve this problem is to define two variables, posCount and negCount, to track the number of positive value and negative value from the input list (Line 2 - 3). 
To track the posCount and negCount, we can traverse through the for-loop and create if else statement to check if the current number x is bigger than 0 then increment posCount by 1 otherwise increment negCount (Line 5- 9).
If all number in the list are positive, the posCount should be equal to the length of the input list and the same rule is applied to negCount. If one of them happens, the listNumber will append either the maximum number (Line 11 -12) or append the minimum number (Line 14-15). 
If both posCount and negCount are not equal to the list length, the block of code Line 11 -15 will be skipped.
At last we can print the listNumber (Line 17).
If we test our function using the three sets of input list, we shall get the following results:
[-1, -99, -81, -99]
[1, 99, 8, 99]
[-1, 99, -81]
 
        
             
        
        
        
Answer:
Quick Assist, Windows 10 feature, allows a user to view or control a remote Windows computer over a network or the Internet to resolve issues without directly touching the unit. It is based on the Remote Desktop Protocol.
Explanation:
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Answer:
.N.	Generación & Descripción
1	
Primera Generación
El período de primera generación: 1946-1959. Base del tubo de vacío.
2	
Segunda Generación
El período de la segunda generación: 1959-1965. Base del Transistor
3	
Tercera generación
El período de tercera generación: 1965-1971. Circuito integrado de base.
4	
Cuarta Generación
El período de cuarta generación: 1971-1980. Base del Microprocesador VLSI.
5	
Quinta Generación
El período de la quinta generación: 1980 en adelante. Base del Microprocesador ULSI. 
Explanation:
espero y esto te sirva de algo
 
        
             
        
        
        
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