Question

5. [4 marks] Convert decimal numbers, 35, 39, 16, 2 to standard binary numbers and sum the four numbers. Show your work by aligning each value appropriately to each other indicating the appropriate carry and sum values for each column. Use non-proportional font e.g., Courier New, to line up columns in your presentation. 6. [5 marks] Using the minimum required number of bits addition in 2's complement notation, solve 22 - 15 = x by preserving addition. Show the relevant process for deriving the final decimal number. Again, using a non-proportional font will make lining up the numbers easier. 7. [5 marks] Refer to the ASCII Code table in the Englander text Chapter 4 (Figure 4.3 p.106 5 TH ed.) and decode the ASCII (hex) message below: 57616e7420746f206b6e6f772061207365637265743f 8. [5 marks] On average, a typical page of text holds roughly 2000 characters. Approximately how many pages of Extended ASII text can a storage media with 4 Gigabyte of free space hold? Describe clearly each step in the process of unit conversions and calculations required for full marks. Note: A calculator should not be used in answering this question; only an approximation is required - each prefix unit increases by roughly 1000 times. Also the result does not include space used for illustrations and the like or fonts and graphic formatting used for WYSIWYG display, which would require some space. Nonetheless, the result gives a good idea of the incredible capacity. 9. [2 marks] The MP3 audio format is described as "almost CD quality". What characteristic of MP3 makes this description accurate?

5. [4 marks] Convert decimal numbers, 35, 39, 16, 2 to standard binary numbers and sum the four
numbers. Show your work by aligning each value appropriately to each other indicating the
appropriate carry and sum values for each column. Use non-proportional font e.g., Courier
New, to line up columns in your presentation.
6. [5 marks] Using the minimum required number of bits addition in 2's complement notation,
solve 22 - 15 = x by preserving addition. Show the relevant process for deriving the final
decimal number. Again, using a non-proportional font will make lining up the numbers easier.
7. [5 marks] Refer to the ASCII Code table in the Englander text Chapter 4 (Figure 4.3 p.106 5
TH ed.) and decode the ASCII (hex) message below:
57616e7420746f206b6e6f772061207365637265743f
8. [5 marks] On average, a typical page of text holds roughly 2000 characters. Approximately how many
pages of Extended ASII text can a storage media with 4 Gigabyte of free space hold? Describe clearly
each step in the process of unit conversions and calculations required for full marks.
Note: A calculator should not be used in answering this question; only an approximation is required -
each prefix unit increases by roughly 1000 times. Also the result does not include space used for
illustrations and the like or fonts and graphic formatting used for WYSIWYG display, which
would require some space. Nonetheless, the result gives a good idea of the incredible capacity.
9. [2 marks] The MP3 audio format is described as "almost CD quality". What characteristic of
MP3 makes this description accurate?

Added by Stephen W.

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