A(n) ________ key or button switches back and forth between two states (on and off) each time it is clicked

A user arrives at a railway station that she has never visited before, carrying a PDA that is capable of wireless networking. Suggest how the user could be provided with information about the local services and amenities at that station, without entering the station’s name or attributes. What technical challenges must be overcome?

What will be an ideal response?

In the storing step in the machine cycle, the results are written to a storage medium.

Answer the following statement true (T) or false (F)