Simplex (technology based) examples:

1)Loudspeaker.

2)Fire Alarm system.

3)Television and remote.

4)Signal broadcasting(Basic Transceiver System to nodes)

5)Computer to printer.

Half Duplex (Technology based) Examples :

1)Internet Surfing(whenever your search something,you have to wait for the response).

2)USB 1.0 (You can either send or receive data but not the same time).

Full Duplex Examples :

1)Telephone (e.g. Audio call You can talk and hear the message at the same time).

2).Instant chat room.(your questions are matching automatically with the FAQs saved in the database while you are writing).

3)Flow of data over Basic Transceiver System (receive and send the data to devices at the same time).