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Homework 4 Due at classtime 12:30. Because we will go over this in class, it is not fair to others to allow you to turn it in late. Make
 

Summary: Homework 4 Due at classtime 12:30.
Because we will go over this in class, it is not fair to others to allow you to turn it in late. Make
sure you have submitted it to Eagle before class.
This is to be completed individually, rather than as a group. You are welcome to compare answers
for two problems with three different people (a total of 6 problems), but the rest should be your own
work.
You may need to read Chapter 4 or look at the online notes. If you don't have a copy of the
book, there is one in the CS office (top floor Old Main, Main 414) if you want to borrow one for
a few hours.
1. What is the difference between a self-correcting code and an error detecting code?
2. Even parity has been used in the information below to make sure that there are an even number of
X's in each row and column. One of the cells has been changed. Which cell is in error and what is the
error?
x x x x
x x x x x
x x x x
x x x x
3. Which best explains why even parity is better than odd parity?
a. Even parity works even if there are an even number of columns.
b. Odd parity sometimes fails to work as there is no consistent coding of the lower right hand corner

  

Source: Allan, Vicki H. - Department of Computer Science, Utah State University

 

Collections: Computer Technologies and Information Sciences