DS3800HMHA is a Microprocessor Controller Board manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. A microprocessor controller board, also known as a microcontroller board, is a compact electronic circuit board that integrates a microprocessor or microcontroller, along with other essential components, to control and monitor various devices or systems. It serves as the brain of the system and executes programmed instructions to perform specific tasks. Here are some key components typically found on a microprocessor controller board: