Disclosed herein is an information processor including, a first function portion including communication means for executing processing relating to communication of data, and communication managing means for controlling the communication means and for managing information representing whether or not the communication means is executing the processing relating to the communication of the data, a second function portion different from the first function portion, instructing means for issuing an instruction to stop the first function portion, determing means provided in the second function portion for, when the instructing means issues the instruction to stop the first function portion, determing based on the information managed by the communication managing means whether or not the communication means is executing the communication processing, and stopping means provided in the second function portion for, when the determing means determines that the communication means is executing the communication processing, stopping the first function portion after the communication processing is completed.