IO Interface · Computer Organization · GATE CSE

Consider a computer with a 4 MHz processor. Its DMA controller can transfer 8 bytes in 1 cycle from a device to main memory through cycle stealing at ...

Which one of the following statements is FALSE?

A keyboard connected to a computer is used at a rate of 1 keystroke per second. The computer system polls the keyboard every 10 ms (milli seconds) to ...

Which one of the following facilitates transfer of bulk data from hard disk to main memory with the highest throughput?

Consider a computer system with DMA support. The DMA module is transferring one 8-bit character in one CPU cycle from a device to memory through cycle...

A computer handles several interrupt sources of which of the following are relevant for this question. $$ * \,\,\,\,\,\,\,\,\,\,\,$$ Interrupt from $...

A $$CPU$$ generally handles an interrupt by executing an interrupt service routine

Normally user programs are prevented from handling $${\rm I}/O$$ directly by $${\rm I}/O$$ instructions in them. For $$CPUs$$ having explicit $${\rm I...

How many $$8$$-bit characters can be transmitted per second over $$9600$$ baud serial communication link using a parity synchronous mode of transmissi...

Which one of the following is true for a $$CPU$$ having a single interrupt request line and single interrupt grant line?

In serial data transmission, every byte of data is padded with a $$‘0’$$ in the beginning and one or two $$‘1’s$$ at the end of byte because

A processor needs software interrupt to

Which of the following device should get higher priority on assigning interrupts?

Which of the following is true?

The correct matching for the following pairs is ...

It gives non-uniform priority to various devices.

In a vectored interrupt

Start and stop bits do not contain 'information' but these are used in serial communication for

The following are some events that occur after a device controller issues an interrupt while process $$L$$ is under execution. $$(P)$$ The processor p...

On a non-pipe-lined sequential processor, a program segment, which is a part of the interrrupt service routine, is given to transfer $$500$$ bytes fro...

Consider the disk drive with the following specifications $$16$$ surfaces, $$512$$ tracks/surface, $$512$$ sectors/track, $$1$$ $$KB/sector$$, rotatio...

A device with data transfer rate $$10$$ $$KB/sec$$ is connected to a $$CPU.$$ Data is transferred byte-wise. Let the interrupt overhead be $$4$$ $$\mu...

A Hard disk with a transfer rate of $$10Mbytes/second$$ is constantly transferring data to memory using $$DMA.$$ The processor runs at $$600MHz$$ and ...

A graphics card has on board memory of $$1$$ $$MB.$$ Which of the following modes can the card not support?

RAID configurations of disks are used to provide