Answer the following statements true (T) or false (F)
1. A channel is directly controlled by the mainframe’s main processor.
2. A channel and the computer’s main processor are synchronized by the processor’s
internal clock.
3. When channels are used, each physical device has its own control unit.
4. Because a channel and the computer are independent, the main processor has no way of
knowing when an I/O operation is completed unless the channel tells it.
5. The channel notifies the main processor that an I/O operation is complete by sending the
main processor an electronic signal called an interrupt.
1. False
2. True
3. True
4. True
5. True
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