A Binary Code represents text, computer processor instructions, or any other data using a two-symbol system. The two-symbol system used is often “0” and “1” from the binary number system. The binary code assigns a pattern of binary digits, also known as bits, to each character, instruction, etc. 0 and 1 are always represents by the digital “Off” and “On” states.
In printed circuit board, Gerber and drilling files are made of binary codes. When import them into CAM software, there are some aspects of NC drilling data need to setup, like Coordinates (Absolute, Incremental), Digits (Integer, Decimal), Zero Suppression (Leading, Trailing, None), and Units (English, Metric). If the format is not correct accordingly, the Gerber and drilling will not display correctly.
In IC programming, some types of IC program and firmware are made of binary codes. With the codes burnt in, the IC and PCB assembly will work as functional desire.