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iren [92.7K]
3 years ago
14

1.Input device which transfers information and images from physical documents to computer files.

Computers and Technology
1 answer:
valkas [14]3 years ago
5 0

Answer:

Scanner.

Explanation:

Scanner refers to an input device which transfers information and images from physical documents to computer files. It is simply an electronic device that is used to digitally scan or copy data (informations) from a hardcopy document such as photographs, paper files, printed texts etc and then converted to a digital computer file in formats such as png, or jpeg. The scanner is a device which avail users the ability and opportunity to view, edit and transfer hardcopy document on a computer system in soft-copy.

Majority of the scanners used around the world are flatbed scanners and as such have a flat glass surface for scanning documents. Basically, all scanners are to be used with a device driver software pre-installed on the computer before the configuration of the scanner.

<em>Other types of scanners are drum scanners, contact image sensor (CIS) scanner, CCD scanner, planetary scanner, 3D scanner, Roller scanner etc</em>.

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A teacher wants a program to give extra points to students who fail a test. Write a Python program to do the following: (a) Ask
Lorico [155]

Answer:

Hi there! Please find the answer below.

Explanation:

The program below demonstrates how each of the requirements can be coded in a simple Python script. To copy the array, we can use the copy() method of the array. To calculate the diff, we can use a few different techniques, so I have implemented it using a loop over the arrays and just storing and displaying the difference in the 2 arrays.

new_string.py

def add_test_score(score):

 test_score.append(score);

contact_hash = {}

test_score = []

print("Enter 5 test scores: ");

for x in range(0, 5):

   input_string = input("Enter test score " + str(x + 1) + ": ")

   add_test_score(int(input_string));

print(test_score);

test_score_copy = test_score.copy();

for e in test_score_copy:

   if e < 60:

       test_score_copy[test_score_copy.index(e)] += 10;

diff = [];

for e in test_score:

   print(test_score[test_score.index(e)]);

   print(test_score_copy[test_score.index(e)]);

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3 years ago
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Shtirlitz [24]

Answer:

def newton(n):

       #Define the variables.

       t = 0.000001

       esti = 1.0

       #Calculate the square root

       #using newton method.

       while True:

               esti = (esti + n / esti) / 2

               dif = abs(n - esti ** 2)

               if dif <= t:

                       break

   

       #Return the result.

       return esti

#Define the main function.

def main():

   

       #Continue until user press enters.

       while True:

               try:

         

                       #Prompt the user for input.

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RUDIKE [14]

Answer:

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Explanation:

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Answer:

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