A device is said to be _____ when it is accessible to, or under the control of, the processor A. people B. icons C. information system D. on-line E. None of the above

The correct answer is: on-line.

An on-line device is a device that is connected to a computer or network. This means that the device can be accessed and controlled by the computer or network.

People are not devices, so they cannot be on-line. Icons are small images that represent files or programs on a computer. They are not devices, so they cannot be on-line. Information systems are collections of hardware, software, and data that are used to collect, store, and process information. They are not devices, so they cannot be on-line.

Therefore, the only option that is a device that is accessible to, or under the control of, the processor is on-line.