Refer to figure.
EASA learning objective 022.02.08.01.02 states: 'List the following possible input data: TAT; static pressure; total pressure; measured temperature; AoA; flaps position; landing gear position; stored aircraft data.'
EASA learning objective 022.02.08.01.03 states: 'List the following possible output data, as applicable to aeroplanes or helicopters: IAS; TAS; SAT; TAT; Mach number; AoA; altitude; vertical speed; VMO/MMO pointer.'

The air data computer (ADC) acts as a central processing point for all the aircraft instruments and systems that need air data parameters in a digital format. Total pressure, static pressure, temperature and angle of attack are input from their respective probes and the ADC performs the necessary calculations to output such parameters as TAS, CAS, altitude and SAT in a digital format that can be processed by the aircrafts systems that require it.

ADC Inputs:

• Total pressure (Required)
• Static pressure (Required)
• TAT/RAT (Required)
• AoA (Optional)
• Weight on wheels (Optional)
• Flap/Slat posn (Optional)
• Landing gear posn (Optional)
• Sideslip/Body angle (Optional)
• Stored aircraft data (Recovery factor, Posn error etc)

Possible ADC Outputs:

• IAS/CAS
• TAS
• SAT
• TAT
• Mach No
• AoA
• Altitude
• Vertical speed
• V_MO/M_MO pointer

Parameters such as AoA and TAT can be outputs as well as inputs because aircraft systems requiring this infomation will obtain it from the ADC rather than having a separate inputs from the probes.