Why are digital signals more reliable than magnetic tapes in recording and transmitting information during a flight

They're not really, they're more convenient. Either one is basically 100% reliable. The problem is that tape is usually on the flight, so you have to find the crash site before you get the data. If the data is transmitted and stored somewhere else, it's available before the wreckage is found.

Mouse and keyboard and software password data and the field codes

After 14 days if you don’t get a response you will get your points back if nobody has answered.