how can i add a data input and output button on my galaxy s4

[AC Question]

I purchase a new phone. Once I set it up I noticed it has no data input output. can this be rectified/added on to the phone?

 

[Rukbat]

No. What kind of data? You can feed audio into the mic input, and get data out of the earphone jack, but there's no general "data" port on a phone. (At very best, you'd have to write an app that handles the data you need on the ports you want - or find one that's already been written for the purpose you need.)