Nursing Infromatics.pptx
- 2. CONTENT INTRODUCTION WHAT IS TRUTH TABLE TYPES OF LOGIC GATES WITH DIAGRAM (1) AND gates (2) OR gates (3) XOR gates (4) NOT gates (5) NAND gates (6) NOR gates (7) XNOR gates.
- 3. INTRODUCTION Logic gates are the electronic circuits in digital system having one or more than one input and only one output. Logic gates perform logical operation that takes binary inputs i.e., 0 and 1 and produce a single binary output.
- 4. WHAT IS TRUTH TABLE A truth table is a chart or a table which shows all the possible combination of the inputs and result it output.
- 5. Types of Basic Logic Gates There are seven basic logic gates: (1) AND gates (2) OR gates (3) XOR gates (4) NOT gates (5) NAND gates (6) NOR gates (7) XNOR gates.
- 6. AND GATES • The output is "true" when both inputs are "true." Otherwise, the output is "false.“ • In other words, the output is 1 only when both inputs are 1.
- 7. Truth table INPUT 1 INPUT 2 OUTPUT INPUT 1 INPUT 2 OUTPUT 0 0 1 1 0 1 0 1 0 0 0 1
- 8. OR GATES • The output is "true" if either or both of the inputs are "true." If both inputs are "false," then the output is "false." • In other words, for the output to be 1, at least input one OR two must be 1.
- 9. Truth table INPUT 1 INPUT 2 OUTPUT INPUT 1 INPUT 2 OUTPUT 0 0 1 1 0 1 0 1 0 1 1 1
- 10. XOR GATES • The output is "true" if either, but not both, of the inputs are "true." • The output is "false" if both inputs are "false" or if both inputs are "true.“ • Another way of looking at this circuit is to observe that the output is 1 if the inputs are different, but 0 if the inputs are the same.
- 11. Truth table INPUT 1 INPUT 2 OUTPUT INPUT 1 INPUT 2 OUTPUT 0 0 1 1 0 1 0 1 0 1 1 0
- 12. NOT GATES • Not gate has only one input. • If the input is 1, then the output is 0. • If the input is 0, then the output is 1.
- 13. Truth table INPUT OUTPUT INPUT OUTPUT 1 0 0 1
- 14. NAND GATES • The NAND is a combination of AND gate and NOT gate. • The output is "false" if both inputs are "true." Otherwise, the output is "true."
- 15. Truth table INPUT 1 INPUT 2 OUTPUT INPUT 1 INPUT 2 OUTPUT 0 0 1 1 0 1 0 1 1 1 1 0
- 16. NOR GATES • The NOR gate is a combination OR gate and NOT gate. • Its output is "true“ if both inputs are "false.“ Otherwise, the output is "false."
- 17. Truth table INPUT 1 INPUT 2 OUTPUT INPUT 1 INPUT 2 OUTPUT 0 0 1 1 0 1 0 1 1 0 0 0
- 18. XNOR GATES • The XNOR (exclusive-NOR) gate is a combination of XOR gate and not gate. • Its output is "true" if the inputs are the same, and "false“ if the inputs are different.
- 19. Truth table INTPUT 1 INPUT 2 OUTPUT INPUT 1 INPUT 2 OUTPUT 0 0 1 1 0 1 0 1 1 0 0 1
- 20. THANK YOU…