What is DMC on Airbus A320? (Display Management Computer)

The Display Management Computer (DMC) is a critical component of the Airbus A320 aircraft. It plays a crucial role in managing and controlling the various displays and systems onboard the aircraft. As the name suggests, the DMC is responsible for handling the display-related functions, ensuring that the pilots have accurate and up-to-date information at all times.

With the advancement in aviation technology, modern aircraft like the Airbus A320 utilize advanced displays for flight control and monitoring. These displays provide pilots with vital information about the aircraft’s systems, flight parameters, navigation, and much more. The DMC acts as the central hub for processing and distributing this information to the respective display units.

The Display Management Computer is a highly reliable and fault-tolerant system that ensures the availability of critical flight information even in the event of a system failure. It is designed to support various display configurations, including multi-function displays (MFDs), primary flight displays (PFDs), and navigation displays.

How Does the Display Management Computer Work?

The Display Management Computer works by receiving inputs from various aircraft systems and sensors, processing that information, and distributing it to the appropriate displays. It uses industry-standard communication protocols and interfaces to seamlessly interface with other aircraft systems, such as the Flight Management System (FMS), Flight Control System (FCS), and Avionics System.

The DMC receives flight data parameters such as altitude, airspeed, attitude, heading, and navigation information from the aircraft’s sensors and systems. It then processes this data and sends the relevant information to the respective displays. This allows the pilots to have a comprehensive overview of the aircraft’s status and navigation during all phases of flight.

Additionally, the Display Management Computer also handles the control and configuration of the displays, allowing pilots to customize their layout and the information displayed. It supports the display of critical flight information, system status, engine parameters, weather data, aircraft performance calculations, and much more. This flexibility ensures that pilots can easily access the information they need to make informed decisions during flight.

The Importance of the Display Management Computer

The Display Management Computer is a vital component of the Airbus A320 aircraft, contributing to the overall safety and efficiency of flight operations. Its importance can be understood by considering the following factors:

– Reliable Information: The DMC ensures that the pilots receive accurate and reliable information regarding the aircraft’s systems, performance, and navigation. This is crucial for making informed decisions and ensuring the safety of the flight.

– Enhanced Situational Awareness: The DMC enables pilots to have a comprehensive view of the aircraft’s status and parameters through the various displays. This enhances their situational awareness and allows them to respond effectively to any changes or emergencies during flight.

– Redundancy and Fault Tolerance: The Display Management Computer employs redundancy and fault-tolerant design to ensure the availability of critical flight information even in the event of system failures. This redundancy reduces the risk of complete display failure and allows the aircraft to continue operating safely.

– Customization and User-Friendly Interface: The DMC allows pilots to customize the layout and content of the displays, ensuring that they have access to the information they need in a user-friendly manner. This flexibility enhances pilot workflow and makes it easier to interpret and react to the displayed information.


The Display Management Computer (DMC) on the Airbus A320 is a critical component that ensures the accurate and efficient display of vital flight information. It plays a key role in enhancing pilot situational awareness, providing reliable information, and supporting safe flight operations.

As technology continues to advance, the DMC will likely undergo further enhancements and integration with other avionics systems. Its reliability, fault tolerance, and user-friendly interface make it an essential part of modern aircraft display systems.

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