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netineya [11]
2 years ago
12

The first cell phones in widespread use were . Smartphone technological advancements added services. Answer the following questi

ons by choosing the best answer from the drop-down menus. Why did cell phones gain in popularity? Which device stemmed from the original cell phone and allowed for synchronized contact information? Which device followed the PDA?
Computers and Technology
2 answers:
Anestetic [448]2 years ago
8 0

Answer:

Since the other guy didnt provide answers to the first two questions, they are:

The first cell phones in widespread use were

✔ mounted in cars and not very portable

Smartphone technological advancements added

✔ data services.

Explanation:

Kay [80]2 years ago
7 0

Answer:

Why did cell phones gain in popularity?

✔ smaller and lighter components

Which device stemmed from the original cell phone and allowed for synchronized contact information?

✔ PDA

Which device followed the PDA?

✔ smartphone

Explanation:

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Write a program that asks the user how many numbers will be entered and then has the user enter those numbers. When this is done
KATRIN_1 [288]

Answer:

<em>The program written in Python 3 is as follows;</em>

<em>The program does not make use of comments; however, see explanation section for detailed line by line explanation of the program</em>

num = int(input("Number of Inputs: "))

mylist = []

userinput = int(input("Enter a digit: "))

i = 1

while i < num:

     mylist.append(userinput)

     userinput = int(input("Enter a digit: "))

     i += 1

   

try:

     first7 = mylist.index(7)+1

     print('The first position of 7 is ',first7)

     last7 = num - 1 - mylist[::-1].index(7)

     print('The last position of 7 is ',last7)

except:

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Explanation:

This line prompts user for the number of inputs

num = int(input("Number of Inputs: "))

This line declares an empty list

mylist = []

This line inputs the first number into the empty list

userinput = int(input("Enter a digit: "))

The italicized lines represent an iteration that allows user to input the numbers into the empty list.

<em>i = 1</em>

<em>while i < num:</em>

<em>      mylist.append(userinput)</em>

<em>      userinput = int(input("Enter a digit: "))</em>

<em>      i += 1</em>

The try-except is used to check the presence of 7 in the list

try:

This checks the first occurrence of 7

     first7 = mylist.index(7)+1

This prints the first occurrence of 7

     print('The first position of 7 is ',first7)

This checks the last occurrence of 7

     last7 = num - 1 - mylist[::-1].index(7)

This prints the last occurrence of 7

     print('The last position of 7 is ',last7)

The following is executed if there's no occurrence of 7

except:

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See Attachments for sample runs

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