Query from a Mobile Device into an Information Server
The ability to access information from a DBMS server on a LAN, from
a minicomputer, or from a mainframe is commonly requested by users of mobile computing.
These solutions are based on some sort of handheld device scanning
information on an item and either storing it locally or transmitting it to a
central processor. A number of vendors (Symbol, Telxon and Handheld
Products) have been offering mobile data collection systems in various
settings - from simple portable bar code readers to more sophisticated PDTs
(Portable Data Terminals) with RF capability that will read information from
various devices and send this information automatically through wireless
local area networks or wide area networks.