Difference between revisions of "CSC103 2011 Homework 1"
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This homework assignment is''' due''' on '''Wednesday Feb. 2nd, at 9:00 a.m'''. Please print it or write it on paper, and bring it to class on the due date. | This homework assignment is''' due''' on '''Wednesday Feb. 2nd, at 9:00 a.m'''. Please print it or write it on paper, and bring it to class on the due date. |
Revision as of 18:52, 26 January 2011
--D. Thiebaut 17:13, 26 January 2011 (EST)
This homework assignment is due on Wednesday Feb. 2nd, at 9:00 a.m. Please print it or write it on paper, and bring it to class on the due date.
No late assignments will be accepted.
Contents
Question #1 (easy)
Write all the integer numbers equivalent to 1 to 32 decimal in binary. In other words, complete the list of number in the second column below:
Decimal Binary 0 0 1 1 2 10 3 11 4 ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Perform the following additions in binary:
10001 + 10011 =
11011 + 00101 =
Question #2 (challenging)
Assume that we live in a universe where everybody only has 4 fingers. Just as we did in class with a system of 2 digits (binary code), we invente a system for counting with only 4 digits: 0, 1, 2 and 3.
- Write the first 20 numbers of a system with 4 digits. To help you out, I will start with the first 5 numbers of the series:
0 1 2 3 10 ...
Continue on until you have 20 consecutive numbers of a system in base 4.
Question #3 (more challenging)
Perform the addition of the following numbers in base 4.
1002 + 1301 =
2222 + 1301 =
Question #4 (moderately challenging)
Why is electricity a good source of energy for computers?
How fast does it take electricity to go from on point on earth to another point on the other side of the earth, assuming a metal wire could stretch between these two points? You'll have to do some research and find the speed of light and the circumference of the earth. Remember that we have a quantitative center that can help you if you find this part of the assignment not intuitive, which is perfectly Ok in this class! :-)
Express your answer in seconds, or milliseconds (0.001 sec), or microseconds (0.000001 sec).