(1) A device attached to the end-points of a
bus network or
daisy-chain. The purpose of the terminator is to absorb signals so that they do not reflect back down the line.
Ethernet networks require a terminator at both ends of the bus, and
SCSI chains require a single terminator at the end of the chain.
(2) A character that indicates the end of a string. In the C programming language, the null character serves as a terminator.