Quiz 06 Input/Output

What are the external device classifications?

• Human Readable

• Machine Readable

• Remote Readable

• Communication

Hard disk is not an external device.

• True

• False

VDT is a human readable device.

• True

• False

Select all I/O module functions

• Control and Timing

• Processor Communication

• Memory Communication

• Error Correction

• Data Buffering

Command Decoding is ..........

• a not part of processor communication

• understanding the commands

• used by the main memory

• used by the I/O module

Which of the following I/O techniques use Interrupts?

• Programmed I/O

• Interrupt Driven I/O

• Direct Memory Access

In this I/O technique, the processor is responsible for repeatedly checking I/O devices to get their status.

• Programmed I/O

• Interrupt Driven I/O

• Direct Memory Access

• Non of the above

In this technique the processor is not involved in data transferring between Memory and I/O devices.

• Programmed I/O

• Interrupt Driven I/O

• DMA

• All of the above

Select I/O commands out of the following.

• Read

• Write

• Load

• Store

• Control

What are the registers available in the I/O module which controls an Output device.

• Output data buffer

• Status

• Instruction Register

• Control

• Input data buffer