Modern logic design isn't done by hand-drawing gates anymore. Engineers use like Verilog or VHDL. They write code that describes how the hardware should behave, and specialized software "synthesizes" that code into a physical layout of transistors on a silicon chip. Why It Matters
The basic storage element. It can hold a single bit (0 or 1) until it is told to change. Fundamentals of Logic Design
Simply flips the input (0 becomes 1, 1 becomes 0). Modern logic design isn't done by hand-drawing gates anymore