8.8. Exercises
1. Consider the merits of a check digit scheme that requires an Admission No to be divisible by 17.
2. What does our inability to nest more than three interruptions tell us about the process of understanding the text of a computer program? (Consider, for example, the implementation of the Enrol event in Section 7.4.2.)
3. HTML provides a 
blink
directive that causes text to flash. Unfortunately, the feature is non-standard, and not all browsers support it. When do you think this feature would be useful? (See Section 8.3.2.3.) Can you ...
blink directive that causes text to flash. Unfortunately, the feature is non-standard, and not all browsers support it. When do you think this feature would be useful? (See Section 8.3.2.3.) Can you ...Get Systems Analysis and Synthesis now with the O’Reilly learning platform.
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