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 Course Code: M150A

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عدد المساهمات : 954
تاريخ التسجيل : 16/02/2012

مُساهمةموضوع: Course Code: M150A   الخميس أغسطس 07, 2014 1:53 am

Faculty of Computer Studies
Course Code: M150A
Course Title: DATA, COMPUTING and INFORMATION - A

Cut-Off Date: August 14,2014 Total Marks: 80 marks
Contents
Part 1 ……………………..………………………………………..……… 2
Part 2 ……………………………..………………..……………………… 3
Part 3.....................................................................................................5

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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.

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PART 1: ESSAY QUESTIONS [5 QUESTIONS WORTH 30 MARKS]
Question 1[8 marks]: Answer the following questions on JS operators (2 marks each):
• List 4 different types of operators used in java script.
• explain the nature of each type and what i does.
• Give example on each operator.
• Give an operation as an example on each type.
Question 2 [6 marks]:

Give three example son how computers can be used for finding, on each example, discuss the tool(s) could be employed to do so. (2 marks each)

Question 3 [6 marks]:

In problem solving, What is the difference between Algorithm (pseudo code) and the flaw chart, consider the problem "Find the summation of odd numbers among values entered by the user and stop once the user entered -5 "(2 marks for the difference and 4 for the two examples)

Question 4 [5 marks]

List 5 types on computer protocols and define the purpose for each one (2.5 marks for the listing and 2.5 for defining the purposes)

Question 5 [5 marks] Explain briefly the processes of bit mapping of an image , what is it and how it is implemented so an image will be converted into a form suitable for computers to understand

PART 2: SHORT ANSWERS [3 QUESTIONS WORTH 34 MARKS].
Question 1 [8 marks]Complete the Following truth table and then decide wither the result of the following notation is true or false: Not X AND (X AND Y)= X AND Y (1 mark each column and 2 marks for the conclusion)

X Y Not X Not Y X OR Y XAND Y X OR (Not Y AND Y) Not X AND (X AND Y)
T T
T F
F T
F F
CONCLUSION:
Question 2 [16 marks] (TMA summer13)

1- Show all the steps required to convert the decimal value 1050 to its binary representation i.e. (1050)10 (???)2
2- Show all the steps required to convert the octal value 2000 to its decimal representation i.e. (2000)8 (???)10
3- Consider a one-hour film to be displayed on a computer at 24 fps. Each frame is 850 x 600 pixels and an 8-bit compressed colour encoding is being used. What in the size of the film file in Bytes, MB and GB?
4- A computer with 65536 bytes size of RAM, show how many Kilobytes and megabytes of memory it have. i.e. (65536) bytes (??)KB and (65536) bytes (??)MB


Question 3 [10]: (MTA-fall14)

3. Consider the flowchart diagram shown: [10 marks]


a. How many times will the loop be executed?

b. What is the output after all instructions have been executed? Draw a tracing table.

c. What will happen if the condition NOT(a>=15) is replaced by a>=10 or a<15?

















PART 3: PROGRAMMING [1 QUESTION WORTH 16 MARKS]
Question 1 [16]:

A company gives its customers a discount based on their value of purchases and number of children in their families according to the following specifications:

• If the value of purchases is $5000 or more, and number of children in the family is more than 7, the discount is 30% of the value of purchases.

• If the value of purchases is $5000 or more and number of children in the family is more than 4, the discount is 22% of the value of purchases.

• If the value of purchases is less than or equal to $2500, the discount is 10%

For example, a customer pays $5000, and gets 30% of 5000, i.e.
(30/100) * 5000 = $1500.
1. Using nested if statements, write a JavaScript code which will work according to the following specifications:
• Read the amount of purchases for a customer and number of children in the family
• Calculate the discount for that customer according to the above description
• Calculate and then print the final price of the value of purchases after the discount
2. Run your program with each of the following values of purchases and children:
o $ 7000 and 10 children
o $ 5000 and 3 children
o $ 2200 and 2 children
For each test, insert a screenshot showing the output into your Solution document.



* Important note: In your answers to this question, you should follow good programming style that helps readability. This includes:
o Using short comment at the beginning stating the purpose of your program.
o Selecting meaningful variables names.
o Using spacing and indentations to help make the structure of your program clear.



end of the TMA questions

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Course Code: M150A
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