I want to develop software and hardware for moblie ticketing(billing).
It means Genertating bills or tickets from remote machine. So client and server should communicate with each other and bill should printed from client machine, and client machine should be handheld or like palmtop.
For example taking printout of ticket when travelling in train.
The railway authoraties will generate ticket throug hand held client machine by communicating server(remote) machine.
Hence plz suggest me what are the software and hardware should i used to develop above system.