When used with I/O devices, the term intelligent implies

When used with I/O devices, the term intelligent implies Correct Answer feature to support offline and online tasks

Intelligent Input/Output (I2O) was an input/output (I/O) specification that was designed to use an Intel i960 microprocessor as an I/O offloading engine. It was created by Intel Corporation in the mid-1990s to streamline and accelerate I/O operations on servers.