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Soloha48 [4]
3 years ago
11

Critical Thinking Questions Case 7-1 ​ You recently started working part-time in a retail store, and are learning about the read

ing devices your store uses. Your store uses a bar code reader to process items during checkout. What type of technology does the bar code reader use?
Computers and Technology
1 answer:
DerKrebs [107]3 years ago
6 0

Answer: Laser Beams

Explanation:

  The laser beam is one of the type of technology that helps in amplifying the light by using the laser principle Stimulated emission in the laser. The word "LASER" is stand for the Light amplification by stimulated emission of radiation.  

The laser is one of the device that emitted the coherent light in the form of beam rays that is propagate only in one direction. The following are the laser beam technology are as follows:

  • Bar code reader
  • Laser surface modification  
  • Information processing
  • Laser range  

Therefore, Laser beam is the correct answer.

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In many DBMSs where no strict separation of levels is maintained, this one language is used by the DBA and database designers to
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The following is a function:
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c

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Your program will read a word (or a whole line) from the user. It will then count the number of vowels in the word (or line) and
Softa [21]

Answer:

Following are the program in the Python Programming Language.

def vowel(): #define function

 print("Enter END to Break") #print message

 while(True): #set while loop

   word=input("Enter words: ") #get input from the user

   count=0 #set count to 0

   if(word=="END"): #set if condition

     break #terminate the loop

   else:

     for i in range(len(word)): #set the for loop

       c=word[i] #initialize in c

       if(c=='a'or c=='e' or c=='i'or c=='o'or c=='u'or c=='A'or c=='E'or c=='I'or c=='O'or c=='U'):

         count+=1 #increament in count by 1

     print("The word " , word , " contains " , count, end=" ")#print message

     if(count==1):#check condition

       print("vowel.")

     else:

       print("vowels")

#call the function

vowel()

Output:

Enter END to Break

Enter words: Vowel

The word  Vowel  contains  2 vowels

Enter words: END

Explanation:

Here, we define a function "vowel()" inside it.

  • Print message for the user.
  • Set the while loop and pass condition is True then, get input from the user in the variable "word" then, set variable "count" and initialize to 0.
  • Set if condition to check if the user input "END" then, the loop will terminate.
  • Otherwise, set for loop which continues from the length of the word.
  • Then, we set if statement which checks the vowel in the word, then increment in count by 1.
  • Print the message in the following format which is mentioned in the question.
  • Then, set if-else statement for check count is equal to 1 then print "vowel." Otherwise, it prints "vowels."

Finally, we call the following function "vowel()".

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3 years ago
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