ARINC 429 and MIL-STD-1553 are data bus standards used widely for avionics systems. ARINC 429 is mainly used in commercial aircraft while MIL-STD-1553 is ideal for real-time mission-critical applications. The MIL-STD-1553 is a military-grade avionics data bus created over 40 years ago by the US Department of Defense. First used in the General Dynamics F-16 fighter aircraft, it has since become a widely adopted data bus used in various military and civil transport aircraft. ARINC-429 was designed in the 1970s (part of Boeing 757/767 development) to ensure interoperability between various systems of the aircraft like navigation, guidance, and flight management computers to accomplish a successful flight.