Input Output Organization Mcqs

Our Collection of Computer Input Output Organization questions and answers focuses on all areas of Computer Input Output Organization covering a collection of most authoritative and best reference books on Input Output Organization. One should spend 1 hour daily for 2-3 months to learn and assimilate Comuter Input Output Organization comprehensively.

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Sciences MCQS

1.
In memory-mapped I/O…

The I/O devices and the memory share the same address space

The I/O devices have a seperate address space

The memory and I/O devices have an associated address space

A part of the memory is specifically set aside for the I/O operation

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2.
The usual BUS structure used to connect the I/O devices is

Star BUS structure

Multiple BUS structure

Single BUS structure

Node to Node BUS structure

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3.
The advantage of I/O mapped devices to memory mapped is

The former offers faster transfer of data

The devices connected using I/O mapping have a bigger buffer space

The devices have to deal with fewer address lines

No advantage as such

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4.
The system is notified of a read or write operation by

Appending an extra bit of the address

Enabling the read or write bits of the devices

Raising an appropriate interrupt signal

Sending a special signal along the BUS

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5.
To overcome the lag in the operating speeds of the I/O device and the processor we use

Buffer spaces

Status flags

Interrupt signals

Exceptions

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6.
The method of accessing the I/O devices by repeatedly checking the status flags is

Program-controlled I/O

Memory-mapped I/O

I/O mapped

None of the above

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7.
The method of synchronising the processor with the I/O device in which the device sends a signal when it is ready is

Exceptions

Signal handling

Interrupts

DMA

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8.
The method which offers higher speeds of I/O transfers is

Interrupts

Memory mapping

Program-controlled I/O

DMA

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9.
The process where in the processor constantly checks the status flags is called as

Polling

Inspection

Reviewing

Echoing

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10.
The interrupt-request line is a part of the

Data line

Control line

Address line

None of the above

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11.
The return address from the interrupt-service routine is stored on the

System heap

Processor register

Processor stack

Memory

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12.
The signal sent to the device from the processor to the device after recieving an interrupt is

Interrupt-acknowledge

Return signal

Service signal

Permission signal

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13.
When the process is returned after an interrupt service ______ should be loaded againi) Register contentsii) Condition codesiii) Stack contentsiv) Return addresses

I,iv

Ii,iii and iv

Iii,iv

I,ii

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14.
The time between the receive of an interrupt and its service is ______

Interrupt delay

Interrupt latency

Cycle time

Switching time

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15.
Interrupts form an important part of _____ systems.

Batch processing

Multitasking

Real-time processing

Multi-user

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