Four.
two nand gates
by multiplying two NAND gates
The 7400, and its variations, is a quad two input NAND gate.
The 7400 series is a family of integrated circuits (ICs) that contain multiple logic gates. The name "7400" refers to the first IC in the series, which is a quad 2-input NAND gate. Each subsequent IC in the 7400 series follows a similar naming convention based on the logic gates it contains.
The 7400, and its variations, is a quad two input NAND gate.
The IC number for a NAND gate is typically 7400 for a standard quad 2-input NAND gate configuration. This IC contains four independent NAND gates, each with two inputs. Variants like the 74HC00 or 74LS00 are also common, offering different logic families with similar functionality.
Seven gates, they are: not, and, or, nor, nand, xor, xnor.
And, or, xor, xnor, nand, nor, not
Nand, nor, and, or, xor, nxor, not, true.
The XOR operation can be implemented using only NAND gates by combining multiple NAND gates in a specific arrangement to achieve the desired XOR functionality.
Nand and nor gates are called universal gates .they called so as since any logic function can be done with nand and nor gates
There are 2 types of universal gates in physics: the NAND gate (combinations of NAND gates can produce any logic function) and the NOR gate (combinations of NOR gates can also produce any logic function). These gates are considered universal because they can be used to implement any logical function.