1. Vicky has been on holiday and has taken lots of photos

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Presentation transcript:

1. Vicky has been on holiday and has taken lots of photos 1. Vicky has been on holiday and has taken lots of photos. The memory in her camera is now full and she needs to transfer her photos to an external secondary storage device. Define what is meant by ‘secondary storage’. 2 marks

2. Vicky has been on holiday and has taken lots of photos 2. Vicky has been on holiday and has taken lots of photos. The memory in her camera is now full and she needs to transfer her photos to an external secondary storage device. Identify the three common storage technologies Vicky can choose from. 3 marks

3. Vicky has been on holiday and has taken lots of photos 3. Vicky has been on holiday and has taken lots of photos. The memory in her camera is now full and she needs to transfer her photos to an external secondary storage device. State four characteristics of secondary storage devices that Vicky should consider when choosing a device. 4 marks

4. Explain whether secondary storage is volatile or non volatile 3 marks

5. Would you use magnetic, optical or solid state storage for the following scenario. Give reasons for your decision Storing pictures in a digital camera 2 marks

6. Would you use magnetic, optical or solid state storage for the following scenario. Give reasons for your decision Handheld device used by students for field work 2 marks

7. Would you use magnetic, optical or solid state storage for the following scenario. Give reasons for your decision Storage drives on the schools main server 2 marks

8. Would you use magnetic, optical or solid state storage for the following scenario. Give reasons for your decision Videos of the schools production to be given to parents 2 marks

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. Estimate the file size of each of the following files A text file that contains 10000 characters. Give your answer in KB 2 marks

11. Estimate the file size of each of the following files A database has 6 fields and 200 records. Give your answer in KB CDNumber, a text field with 6 characters Title, a text field with max. 20 characters Artist, a text field with max. 15 characters DatePublished NumberOfTracks, an integer field TotalLength, a real field 2 marks Text = 1 byte per character. Integer = 4 bytes Real = 4 bytes Date = 8 bytes

12. Estimate the file size of each of the following files An image is 2030 x 1000 pixels in size. It has 65536 colours (2 bytes each). 2 marks

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 (you need to convert the minutes into seconds). 2 marks bytesPerSample * samplesPerSecond * channels * duration

14. What is a variable? 2 marks

14. Give an example of a variable you have used and explain why it was needed 2 marks

15. What is type casting? 1 marks

16. Give an example of where you have used type casting and explain why it was needed 2 marks

18. What is the difference between using a for loop and a while loop 18. What is the difference between using a for loop and a while loop. Give an example of when you would use a while loop 3 marks

17. Draw the flowchart for the following scenario I would like a program that asks the user for their name. It should then ask them what the capital of France is. If they say Paris it should say well done and if they say anything else it should say sorry incorrect. 6 marks