A switchboard can have two meanings:
In a telephone system, a switchboard sets up a telephone call. In the old days human operators would manually move connections to set up the call, but now most switchboards are fully automatic.
A switchboard is a menu button interface within a database management system such as Access. When you press a switchboard button, a query is run to carry out the task in hand. Perhaps a button might be labelled "All Users", in which case you could expect all registered users to be displayed in a report.
Once the database has been created, the designer will often put together a switchboard to allow standard commands to be run. Users then, do not have to know the details of the query itself.
Challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Switchboard