## How that a positive logic NAND gate is a negative logic NOR gate?

(Hint) To change a positive-logic gate to a negative-logic gate is to complement all inputs and output of the gate at the same time. A positive-logic NAND gate implements the function (xy)’. Hence a negative-logic NAND gate implements ((x’y’)’)’ = (x+y)’, which is NOR function.

Is negative AND AND NAND gate are same?

But the negative-OR which is nothing more than a NAND gate, we have a special case. When both inputs are LOW we get HIGH output, and when both inputs are HIGH we get LOW output. This is what differentiates a normal OR gate from a negative-OR gate.

### What is a negative NAND gate?

➢ A NAND gate can be used for an OR operation that requires one or more LOW inputs to produce a HIGH output. ➢ This aspect of NAND operation is referred to as negative-OR. The term negative in this context means that the inputs are defined to be in the active or asserted state when LOW.

What is meant by negative logic?

Negative Logic is a logical circuitry in which higher voltage level refers to LOW (‘0’ or FALSE) and Lower voltage level refers to HIGH(‘1’ or TRUE)

## What is positive and negative logic with example?

Positive logic is defined as a high voltage level representing a logic 1 and a low voltage level representing a logic 0. Negative logic is the reverse, i.e., a low voltage level represents a logic 1 and a high voltage level represents a logic 0.

What is positive and negative logic give one example of each?

Input and output polarity is indicated by a bubble or triangle. For example, the following shows a positive logic AND gate and a negative logic OR gate. But the system of digital logic where binary 0 represents higher voltage and binary 1 represents low voltage is called negative logic.

### Can a NAND gate function as negative OR gate?

A NAND gate can function as a negative-OR gate.

What is a negative logic system?

Negative Logic is a logical circuitry in which higher voltage level refers to LOW (‘0’ or FALSE) and Lower voltage level refers to HIGH(‘1’ or TRUE) View All Products.

## What is positive logic in a logic circuit?

Positive logic: If the signal that activates the logic gate has for its high (1) level a voltage more positive than for its low (0) level then the polarity of the logic is called positive logic, as shown in Fig. 10.21(a).