The following shows how the emulator can be fitted into the size
of the PDA. To start the emulator, click on it and press RETURN.
Next enter some commands, such as: enable, show
running-config, config t, show vlan,
and so on.
If you're interesting in programming Cisco switches, the following
link will give you a basic guide:
http://www.dcs.napier.ac.uk/~bill/cnds_switch.htm