1. 1. Davinder is a music student
1. Davinder is a music student. She needs to take her files from her home computer into college.
Identify a method of storage which is suitable and state why this method is suitable.
2 marks

2. 2. Most computer systems use at least one storage device.
Explain one reason why a secondary storage device is needed in most computer systems
2 marks

3. 3. Apu has a handheld e book reader that allows him to store and read electronic books.
State and explain which type of storage is most suitable for storing the electronic books inside the eBook reader.
3 marks

4. 4. Give two reasons why a free ebook in a magazine would be most suitable on a CD-ROM
2 marks

5. 5. State whether a CD ROM is magnetic, optical or solid state storage
1 mark

6. 6. State one secondary storage device that are built into a smart phone
1 mark

7. 7. A desktop computer’s memory includes ROM and RAM
7. A desktop computer’s memory includes ROM and RAM. State for each of these statements whether it is true for RAM or ROM
Programs and data which are currently being used are loaded here
All the contents are lost when the power is turned off
It is used to boot up the computer when it is switched on
3 marks

8. 8. Explain what virtual memory is and state why it is needed
3 marks

9. 9. Some secondary storage devices are magnetic others are solid state
9. Some secondary storage devices are magnetic others are solid state. Describe the characteristics of magnetic and solid state secondary storage
6 marks

10. 10. Estimate the file size of each of the following files
A text file that contains characters. Give your answer in KB
2 marks

11. 11. Estimate the file size of each of the following files
A database has 4 fields and 150 records. Give your answer in KB
a text field with 7 characters
a text field with max. 18 characters
Date
an integer field
2 marks

12. 12. Estimate the file size of each of the following files
An image is 1030 x 2080 pixels in size. It has a colour depth of 3 bytes
2 marks

13. 13. Estimate the file size of each of the following files
A sound file has 4 bytes per sample. It takes 100 samples per second, over 1 channel and is 2 minutes 30 seconds long
2 marks

14. 14. What is a variable?
2 marks

15. 15. Describe the purpose of RAM in the computer
2 marks

16. 16. What is type casting?
1 marks

17. 17. Mina upgrades her computer to 6GB of RAM
17. Mina upgrades her computer to 6GB of RAM. Explain how this upgrade will affect the performance of her computer
2 marks

18. 18. State what would you use an IF statement for and give an example
2 marks

19. 19. Draw the flowchart for the following scenario
A program allows users to input the message to be displayed and the number of times it should flash.
Allows the user to input the message and the number of flashes.
Rejects the message if it is longer than 20 characters and stops.
Otherwise it repeatedly displays the message and clears the display for the correct number of times.
6 marks

20. 20. State what would you use a while loop for and give an example
2 marks

21. 21. How is a for loop different
1 marks

22. 22. State what a function is and give an example of where you have used a function
2 marks

23. 23. State what a list is and give an example of where you have used a list
2 marks

24. End of test Please check all your answers carefully
53 marks