Answer the following questions:
1. Explain how the error card trick from the Error Detection lesson uses a parity scheme. Was it an even or odd parity scheme?
Answer
It is an even parity scheme because it detected errors by checking if all the rows had an even number of some amount.
2. What are some of the limitations of using parity bits for error detection?
Answer
Some of the limitations of using parity bits for error detection is that if there is an even number of errors (2, 4, etc) then the error won't be able to be detected.
3. Another type of error detection is a check sum. Research what a check sum is and then describe it in your own words. Can a check sum identify where an error occurs?
Answer
A check sum is a method of error detection that checks if the message(s) sent the correct amount, however it cannot identify where the error occurs.
4. (Optional) Explain in your own words the difference between error detection and error correction. Describe how the error correction process used in the video above allows the computer to fix errors.
Answer
The difference between error detection and error correction is that error detection will pinpoint errors, but won't necessarily fix them, whereas error correction may not be able to detect errors, but can fix them.