Final answer:
An Air Data Computer (ADC) is an electronic device that calculates and processes air data parameters in an aircraft. It is an essential component of the electronic flight instrument system (EFIS) and provides accurate and reliable information for flight instruments.
Step-by-step explanation:
An Air Data Computer (ADC) is an electronic device that calculates and processes air data parameters in an aircraft. It is an essential component of the electronic flight instrument system (EFIS) and provides accurate and reliable information for flight instruments, such as the altimeter, airspeed indicator, and vertical speed indicator.
The ADC measures parameters such as static pressure, total pressure, and outside air temperature to calculate critical data like airspeed, altitude, and rate of climb. It then converts this data into digital signals that can be used by the flight instruments.
Therefore, the correct answer is 4) All of the above, as the characteristics mentioned in options 1, 2, and 3 are all true for an Air Data Computer.