1. Parity systems are defined as either________ or ________ and will add an extra ________ to the digital information being transmitted.
2. Which type of gate can be used to add two bits?
3. Why is an exclusive-NOR gate also called an equality gate?
4. Show from the truth table how an exclusive-OR gate can be used to invert the data on one input if the other input is a special control function.
5. Determine odd parity for each of the following data words:
1011101 11110111 1001101
6. The Ex-NOR is sometimes called the ________.
7. The odd/even parity system would require a sixth bit to be added to a 4-bit system.
8. Electrical noise does not affect the transmission of binary information.
9. In an exclusive-OR, both inputs cannot be HIGH to provide a HIGH output.
10. Using the CPLD design environment, we can simulate any combinations of inputs and observe the resulting output to check for proper circuit operation.
11. The exclusive-OR provides a LOW input if one input or the other input is HIGH.
12. The exclusive-OR is written in a Boolean equation as a plus sign with a circle around it.
13. Parity generator and checker circuits are available in single IC packages.
14. The Ex-NOR is sometimes called the equality gate.
15. A parity checker is constructed in the same way as a parity generator, except that in a 4-bit system there must be five inputs, and the output is used as the error indicator.
16. In a parity generator circuit, an error is signaled on an error indicator.
17. Select the statement that best describes the parity method of error detection:
18. A logic circuit that provides a HIGH output for both inputs HIGH or both inputs LOW is a(n):
19. A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n):
20. Identify the type of gate below from the equation
21. How is odd parity generated differently from even parity?