Almost every electrical equipment we use on a daily basis, including computers, laptops, mobile phones, refrigerators, and televisions, is built with either complicated or basic circuitry. The electronic circuits we use are made up of many electronic and electric parts connected to one another. These connections are made by connecting wires, which then allow electrical current to pass to capacitors, resistors, transistors, diodes, inductors, diodes, and so on. Based on distinct characteristics including connections, manufacturing method, size, and signal application, circuits may be divided into many categories. This article concentrates on the signal used in a circuit and further condenses the subject to issues relating to digital integrated circuits and their many forms.