duplex system
full duplex
A half duplex transmission mode is a process where data can be sent in both directions, yet the data have to be sent at different times. The half duplex transmission mode is used in hard disks, DVD storage and intercom communications.
I wouldn't worry about this question until you've learnt English properly. But yes, data retrieval can be considered as half duplex or duplex as it can send a prompt then have data sent to it, or simply create a two way transmission in synchronous.
CAN is half-duplex. One differential pair means one message at a time.
duplex duplex
TCP is usually used as full duplex, but in some case, half duplex can also be used in TCP.
Full Duplex
A duplex outlet is 115vac.
The plural of "duplex" is "duplexes."
Duplex cross joint
Rahmat khairkhwa Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.