During the Bronze Age, tablets of clay were used to record trade transactions and daily events. In subsequent millennia, papyrus, parchment and paper evolved as more practical media, even though paper tablets as we know them were not created until the end of the 19th century industrial revolution.
Now, as part of a digital revolution, paper pads are quickly giving way to an array of electronic devices, including a 21st century version of the tablet. These slim touch-screen pads, which can provide anytime, anywhere access to people and information, have evolved from innovations in computing, telecommunications, and networking over the better part of a century.
Smart phones and tablets demand different application-development models and present different opportunities for customizing the user experience.