حلول واجبات الجامعة العربية المفتوحة (لعــspring2017ـــام)

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 1 Faculty of Computer Studies Course Code: M150A Course Title: DATA, COMPUTING and INFORMATION - A Tutor Marked Assignment Cut-Off Date: Total Marks: 60 Contents Question 1 ……………………..…………………………………..……… 2 Question 2 ……………………………..………………..………………… 2 Question

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مُساهمةموضوع: 1 Faculty of Computer Studies Course Code: M150A Course Title: DATA, COMPUTING and INFORMATION - A Tutor Marked Assignment Cut-Off Date: Total Marks: 60 Contents Question 1 ……………………..…………………………………..……… 2 Question 2 ……………………………..………………..………………… 2 Question    الأربعاء مارس 18, 2015 6:37 pm

1
Faculty of Computer Studies
Course Code: M150A
Course Title: DATA, COMPUTING and INFORMATION - A
Tutor Marked Assignment
Cut-Off Date: Total Marks: 60
Contents
Question 1 ……………………..…………………………………..……… 2
Question 2 ……………………………..………………..………………… 2
Question 3 ………………………………..………………..……………… 3
Plagiarism Warning:
As per AOU rules and regulations, all students are required to submit their own TMA work and avoid plagiarism. The AOU has implemented sophisticated techniques for plagiarism detection. You must provide all references in case you use and quote another person's work in your TMA. You will be penalized for any act of plagiarism as per the AOU's rules and regulations.
Declaration of No Plagiarism by Student (to be signed and submitted by student with TMA work):
I hereby declare that this submitted TMA work is a result of my own efforts and I have not plagiarized any other person's work. I have provided all references of information that I have used and quoted in my TMA work.
Name of Student:
Signature:
Date:
2
Question1: (20 marks)
1. List two benefits and two drawbacks of using Emails?
2. Using computers to solve problems requires four-way communication. Mention them.
3. A representation establishes a relationship between a form (symbol) and an associated meaning (or content). What are the two conditions that the representation must meet to be effective?
4. List the properties of representation.
5. List two consequences of using a complex representation?
Question 2: (20 marks)
1. Use truth table to check if the following two Boolean expressions equivalent or not:
Boolean expression 1: (A OR B) AND (NOT A OR NOT B)
Boolean expression 2: (A AND B) OR (NOT A AND NOT B)
2. For the given numbers find their equivalent in the specified base. Show your steps.
(1426)10 = ( ) 2
(1276)8 = ( ) 10
3. A movie requires 220 GB to be displayed in a computer. The size of each frame is 1.25 MB and the frames moves in a rate of 16 frames per second.
a. What is the number of frames in the movie?
b. Find the duration of the movie in seconds then in hours.
3
Question 3: (20 marks)
1. The following series “S1” represents the squares of the 10 integer numbers from 0 to 10.
S1: 0 1 4 9 16 25 36 49 64 81 100. Based on your programming knowledge in M150A, answer the following.
a. Create a JavaScript code that print out “S1”.
b. Specify the control instruction applied on “S1”.
c. Draw the flowchart diagram of your code.
2. Trace the following JavaScript code to show the exact output.




var x, y;
y = 100;
x = 17 + 2 + 80;
document.write('First, x = ' + x + ' and y = ' + y);
document.write('
');
x = y + 24;
x = x + 6;
x = 3 + x / 2;
document.write("Now, x = " + x + ' and y = ' + y + "
");
x = y;
y = 11;
// y = y + 10;
document.write("Finally, x = " + x + " and y = " + y);





4
3. Fibonacci series is defines as a series of numbers in which each number (Fibonacci number) is the sum of the two preceding numbers. The simplest is the series 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, etc. Write a JavaScript code that asks the user to enter a number and calculate the Fibonacci series for this number.
4. Write a JavaScript code that prints the following output?
100 90 80 70 60 50 40 30 20 10 90 80 70 60 50 40 30 20 10 80 70 60 50 40 30 20 10 70 60 50 40 30 20 10 60 50 40 30 20 10 50 40 30 20 10 40 30 20 10 30 20 10 20 10 10
5. Write a JavaScript program to read 10 positive values from the user, and then sum only the multiples of 3 and 5.
a. Run your program with print out a message about the sum.
b. Insert screenshot showing the program prompting the user for the number.

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1 Faculty of Computer Studies Course Code: M150A Course Title: DATA, COMPUTING and INFORMATION - A Tutor Marked Assignment Cut-Off Date: Total Marks: 60 Contents Question 1 ……………………..…………………………………..……… 2 Question 2 ……………………………..………………..………………… 2 Question
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