ISDD+Standard+File+Formats

media type="custom" key="27918359"


 * Questions**

1. Why is there a need for standard file formats?

2. Download this Word document (a) Save the file as a Rich text Document (RTF) document. Describe what features stay and which are lost. (b) Save the file as a Plain Text (TXT) document. Describe what features stay and which are lost. (c) Save the file as a PDF document. Describe what happens.

3. Download this spreadsheet (a) Save the file as a CSV (Comma Delimited) document. Describe what features stay and which are lost. (b) Column G Total Pay was set up as a formula. What has happened to the formula? (b) Save the file as a PDF document. Describe what happens.

4. Rajah is editing some photographs with his camera phone and is thinking of saving them as GIF files. What advice would you give him?

5. Luke has ripped 1000 songs from his CD library and they take up 40 Gigabytes on his hard drive as WAV files. He is considering compressing the songs to MP3 format. Roughly how much space might he expect the songs to take up on his hard drive as MP3 files?

6. What formatting information is stored in a TXT text file?

7. Say whether these standard graphics file formats have no compression, lossless compression or lossy compression BMP GIF PNG JPEG

8. Which graphics file formats offer transparency?

9. Astrid is developing a computer game and is designing simple sprites using a 256 colour palette. Which file format would you recommend Astrid uses?

10. What is the main disadvantage of a bitmap file?

11. Which audio file format do CDs use?

12. How do MP3s compress audio?

13. How does MPEG compress video?

14. Which file format does Microsoft Excel use?

15. What does CSV stand for?

16. What data does a CSV file store?

17. Give one advantage and one disadvantage of a PDF file.