Match the following terms with their definitions.

$$ Half$-$duplex

$$ Programmed I$/$O

$$ DMA

$$ Full$-$duplex

$$ Serial interface

$$ Parallel interface

$$ Interrupt$-$driven I$/$O

$$ Bus

Single signal wire carrying one bit at a time

Many wires, each wire carries one bit at a time

Simultaneous bidirectional transfer

Transfer in one direction at a time

Processor performs polling

Device interrupts processor

Mechanism to connect processor to memory and I$/$O devices

Device moves data to$/$from memory without using processor