1. A portable computing device comprising: a personal digital assistant including: a scheduling program, a first data file maintained by said scheduling program, and a synchronization routine; and a pager in two-way communication with said personal digital assistant; said synchronization routine being arranged to transmit a synchronization information data packet including information regarding at least one change made to said first data file, via said pager to a remotely located separate computing device having an associated second data file; and said synchronization information data packet being utilizable by said remotely located separate computing device in order to synchronize data of said second data file to data of said first data file.