Not an A320 engineer, but the matter would still come back to the definition of a computer.
Do you include transceivers (VHF, HF, Satcom, Radio Altimeter, Radar... ), receivers (VOR, ILS, Marker, GPS...), transponders (ATC), tuners (HF), interrogators (DME), recorders (including DFDR and cockpit voice), ACARS, Cabin Interphone/Flight Interphone/PA, Selcal, TCAS, cockpit display data processors..... Even nav and comms boxes have fault processors.