What is digital circuit design?

Digital circuit design involves creating electronic circuits that operate on discrete digital signals, typically representing binary values (0 and 1). It utilizes logic gates (AND, OR, NOT, etc.) and memory elements (flip-flops, registers) to implement complex digital systems such as microprocessors, memory chips, and digital signal processors. Digital circuit design employs hardware description languages (HDLs) like VHDL and Verilog, and sophisticated computer-aided design (CAD) tools for simulation, synthesis, and layout.