Computer Science for IGCSE & O level - Boolean Logic (Section 3 - No. 21)
What is the main advantage of using NAND gates in building logic circuits?
They are simpler to design and manufacture.
They can be used to construct all other basic logic gates.
They consume less power.
They are faster than other gates.
Explication
NAND gates are considered universal gates because any other logic function can be created using only NAND gates.