CSC103 How Computers Work
Quiz 3 & Assignment 3: Discussion & Best of the Week


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Quiz 3

The result (all quiz takings) are shown in the link on the syllabus page. Again half the class got perfect scores!

Assignment 3

Clearly the class had a good time, and learned more in that 80 minutes than in most other class sessions. I feel it is a little demeaning to grade you on it, but ... I worked out a ridiculously detailed scheme, grouping like questions, weighting the group as per the fraction of the total 16 questions (e.g., 3 questions on disks counted 3/16's, etc.). After all that, the class average grade was a solid A-.

Some common small failings were not noticing that the machines were all Dell Optiplex GX270's or GX280's, marked on the case. Actually, with this information you could look up on Dell's web site the standard components. Often you were confusing serial numbers, which are part-specific, with model numbers, which are what are needed to investigate on the Web.

The Power Supply was more complicated than I anticipated, accepting two voltages as input and providing many as output (the more important quantities, which feed the internal components).

The hardest question to answer (again unintentionally) is the speed rating of the CD/DVD drive. You had to search on the web to find this information, and then when you found it, it was (like the situation with power), not straightforward, with different speed ratings for different activities. Several in the class did some serious Web research to untangle this situation.

Best of the Week goes to Hu Hsing Su's submission.