Information System


  1. Data : raw material, it is not organized , has little value.  e.g = text, numbers, images, audio, and video.
   
  



  1. Information :is organized data, valuable, meaningful to a specific user.
  
 


  1. Information System : is a set of a related components that Collects data, processes data and provide information.
 











Program Development



Assesment form 5:
LA5.S10.1
Apply Program Development Phases To Develop A Problem-Solving Program



 

Sample Projects for LA5.S10.1


1.        Write a simple program to calculate the area of a triangle. Your program should allow the user to key in the base and height of the triangle. Use a formula to calculate and display the area of the triangle.


















2.       Write a simple program to calculate the area of a circle. Your program should allow the user to key in the radius of the circle. Use a formula to calculate and display the area of the circle.























3.       Write a simple program to calculate the area of a rectangle. Your program should allow the user to key in the length and width of the rectangle. Use a formula to calculate and display the area of the rectangle.


















4.       Write a simple program to calculate the volume of a pyramid. Your program should allow the user to key in the length, width and height of the pyramid. Use a formula to calculate and display the volume of the pyramid.

5.       Write a simple program to calculate the volume of a sphere. Your program should allow the user to key in the radius of the sphere. Use a formula to calculate and display the volume of the sphere.

6.       Write a simple program to calculate the volume of a cuboid. Your program should allow the user to key in the length, width and height of the cuboid. Use a formula to calculate and display the volume of the cuboid.

















7.       Write a program to find the total and average of three numbers.

8.       Write a program to find the total, difference and average of two numbers.

9.       Write a program to calculate the price of an item after discount. The user will key in the price and percentage discount. The program will calculate and display the discount given and the actual amount to be paid.

10.   Write a program to calculate the price of an item after discount. The user will key in the price and percentage discount. The program will calculate and display the actual amount to be paid.

11.   Write a program to calculate the body mass index (BMI). The user will key in the weight and height of a person. The program will display the BMI and whether the person is underweight, normal, overweight or obese.

12.   Write a program to calculate the body mass index (BMI). The user will key in the weight and height of a person. The program will display the BMI.

13.   Write a program to allow a user to guess a hidden number by entering any number. The program will inform the user if the number entered is greater than, less than or equals to the hidden number.

14.   Indra Sdn Bhd is a company that manages the parking lots at Bukit Puteri Resort.  Vehicles parked are charged based on the following :
a.       1st half hour                         :           RM0.20
b.      2nd half hour                        :           RM0.50
c.       subsequent half hour           :           RM0.80

To improve the efficiency at the payment counters, you are asked by Indra Sdn Bhd to develop a program to calculate the total parking charges based on the time of entry and time of departure of each vehicle.


15.   Happy Supermarket will be holding an annual sale in two-month time.  Discount will be given to customers based on the amount they spent. The discount is as given in the following table.

Amount Spent (RM)
Entitled Discount
                   100 to 200
5 %
               More than 200 to 400
10 %
               More than 400
15 %
Table 1

Your task is to build a program to calculate the amount of money the customer has to pay after discount.  The program will display the amount spent by the customer, percentage discount given, the actual discount and the amount to be paid.

16.   A book salesman at Syarikat Blue East will receive a basic pay of RM500.00 per month. Based on the sale, they will get commission on number of books sold. The commission is based on Table 2:

Number of books sold
Commission (RM) per book
200 and below
  • First 100 books
  • Subsequent 100 books

0.20
0.30
More than 200
0.35
Table 2
According to the number of book sold, you are request to develop a program to calculate the salary for each salesman.

Form 5


Revision 2
Question 1
Four basic operations in machine cycle.
 A
Executing
B
Decoding
C
Fetching
D
Storing
        i)            The process of obtaining program  instructions or data item for memory = ___
       ii)            The process of implementing the instructions in a program = ___
 Question 2
The hierarcy of a multimedia development team.
a)   State Y
      b)  State the role of Y 
     
Question 3
Process in program execution.

        i)            Name Process X
       ii)            Name Process Y

Question 4
Figure 4 shows the phases of program development process.  Based on the figure, answer the  following questions.  

a).        Name Phase P and Phase Q.
 b).        Arrange the phases in correct sequence.
     




Computer Crime


David always spends his leisure time surfing the Internet.  He usually downloads proprietary software and MP3 songs and sells them to his friends.   He uses his ICT knowledge to get the unauthorized serial number for the software.  One day, he finds that his computer is getting slow and keeps on duplicating files.

David selalu meluangkan masa lapangnya untuk melayari Internet. Dia sering memuat turun perisian hakcipta dan lagu-lagu MP3 untuk dijual kepada rakan-rakannya. David menggunakan kepakarannya dalam bidang ICT untuk mendapatkan nombor siri yang tidak sah untuk mengaktifkan perisian yang telah dimuat turun. Pada suatu hari komputer David menjadi perlahan dan sering membuat salinan fail tertentu secara berulang.

a.      Name the type of computer crime that David has committed.
                  Namakan jenis jenayah komputer yang dilakukan oleh David.
b.   What has happened to David’s computer?
Apakah yang telah terjadi kepada komputer David?
c.   How can David prevent his computer from the problem in (b) in the future?
Bagaimanakah David  dapat mengatasi masalah komputer yang dihadapi
di (b) pada masa akan datang?
d.   Other than the threat you mentioned in (b), give another computer threat
that could affect David’s computer.
Selain daripada ancaman yang dinyatakan di(b), berikan satu lagi
ancaman lain yang mungkin berlaku kepada komputer David.

Sumber: Trial SPM 2007-KL
 
 

Information Processing Cycle




(a)           State the function of the following components.
          Nyatakan fungsi komponen di bawah.
i)                    input
ii)                  processor                                                                                            [ 2 M ]
(b)        Application software is a computer program or a suite of computer programs that performs a particular function for the user. Give a difference between word processing and spreadsheet.
Perisian aplikasi adalah program komputer atau pakej program komputer yang  melaksanakan tugas tertentu terhadap pengguna.Berikan satu perbezaan antara pemproses perkataan dan hamparan elektronik.                                                                [ 2 M ]

(c)          Give two advantages of using computerized system in industry sector.
Berikan dua kebaikan menggunakan sistem perkomputeran dalam bidang industri.    [ 2 M ]

(d)     Explain briefly two impacts of   ICT to the society.
         Terangkan secara ringkas dua kesan penggunaan ICT kepada masyarakat.                [ 2 M ]

Sumber: Trial SPM 2007-Pahang