Multiple Choice questions & answers are available for a Computer Science students to clear GAT, NTS, ECAT exams, various technical interview, competitive examination, and other entrance exam. Input Output (IO) System is the important Topic for a computer science and technical students and one should practice these Mcqs to grasp good knowledge on the topic.
Boot program
Bootloader
Initializer
Bootstrap program
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Sending signals to CPU through bus
Executing a special operation called system call
Executing a special program called system program
Executing a special program calle interrupt trigger program
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Hardware generated interrupt caused by an error
Software generated interrupt caused by an error
User generated interrupt caused by an error
None of these
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Information Service Request
Interrupt Service Request
Interrupt Service Routine
Information Service Routine
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Is an address that is indexed to an interrupt handler
Is a unique device number that is indexed by an address
Is a unique identity given to an interrupt
None of these
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High speed devices(disks and communications network)
Low speed devices
Saving CPU cycles
Both a and c
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The CPU uses polling to watch the control bit constantly, looping to see if device is ready
The CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available
The CPU receives an interrupt when the device is ready for the next byte
The CPU runs a user written code and does accordingly
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The CPU uses polling to watch the control bit constantly, looping to see if device is ready
The CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available
The CPU receives an interrupt when the device is ready for the next byte
The CPU runs a user written code and does accordingly
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The CPU uses polling to watch the control bit constantly, looping to see if device is ready
The CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available
The CPU receives an interrupt when the device is ready for the next byte
The CPU runs a user written code and does accordingly
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Bottom Layer(0) is the User interface
Highest Layer(N) is the User interface
Bottom Layer(0) is the hardware
Both b and c
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Sending signals to CPU through system bus
Executing a special program called interrupt program
Executing a special program called system program
Executing a special operation called system call
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Saving the current state of the system
Loading the interrupt handling code and executing it
Once done handling, bringing back the system to the original state it was before the interrupt occurred
All of these
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Return from subroutine.
Obtain system services, which need execution of privileged instruction.
Test the interrupt system of the processor.
Implement co-routines.
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A – 2, b – 1, c – 3, d - 4
A – 4, b – 1, c – 3, d - 2
A – 2, b – 3, c – 1, d - 4
A – 3, b – 4, c – 2, d - 1
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A graphic display device
A line printer used to print the output of a number of jobs
A terminal used to enter input data to a running program
A secondary storage device in a virtual memory system
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