1. 2. 3. More Logic Questions How many gates are contained on a standard 7400 series chip? When is the output of an OR gate low? Given a three input OR gate with the inputs A,B and C; if C is high and A and B are unknown, what will the output be?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Please help me answer these 14 questions. I am having trouble answering them

1.
2.
3.
4.
5.
6.
7.
More Logic Questions
How many gates are contained on a standard 7400 series chip?
When is the output of an OR gate low?
Given a three input OR gate with the inputs A,B and C; if C is high
and A and B are unknown, what will the output be?
What is the Boolean expression for a NAND gate?
Briefly explain the difference between an AND gate and a NAND
gate in terms of their truth table.
Given a three input NOR gate with the input levels high, low and
low, what is the output?
Draw the schematic diagram for the following Boolean expression:
A.(B+C)
Transcribed Image Text:1. 2. 3. 4. 5. 6. 7. More Logic Questions How many gates are contained on a standard 7400 series chip? When is the output of an OR gate low? Given a three input OR gate with the inputs A,B and C; if C is high and A and B are unknown, what will the output be? What is the Boolean expression for a NAND gate? Briefly explain the difference between an AND gate and a NAND gate in terms of their truth table. Given a three input NOR gate with the input levels high, low and low, what is the output? Draw the schematic diagram for the following Boolean expression: A.(B+C)
8.
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14.
Is the following Boolean expression true or false:
(A+B).C+(A.C)=C.(A+B)
What is the difference between a full and a half adder?
Using only NAND gates, draw a schematic diagram for an emulated
OR gate.
Why are three inputs necessary in a full subtractor?
When the output of a gate feeds back into the input circuitry of the
same gate what type of circuit is formed?
What is the forbidden state of an RS NAND flip-flop? When does it
occur and why is it a problem?
What is the difference between the clocked RS flip-flop and the
Standard RS flip-flop in terms of the forbidden state?
Transcribed Image Text:8. 9. 10. 11. 12. 13. 14. Is the following Boolean expression true or false: (A+B).C+(A.C)=C.(A+B) What is the difference between a full and a half adder? Using only NAND gates, draw a schematic diagram for an emulated OR gate. Why are three inputs necessary in a full subtractor? When the output of a gate feeds back into the input circuitry of the same gate what type of circuit is formed? What is the forbidden state of an RS NAND flip-flop? When does it occur and why is it a problem? What is the difference between the clocked RS flip-flop and the Standard RS flip-flop in terms of the forbidden state?
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