general query

Suppose DMA is employed in two modes1)Cycle Steaking Mode2)Burst ModeTransfer of bus control from CPU to I/O or I/O to CPU takes 300ns. Assume the system in which bus cyc...

gshivam63

3.7k views

gshivam63 asked Jun 29, 2016

CO and Architecture
co-and-architecture
dma
io-organization

+ –

3 votes

2 answers

pC asked Dec 30, 2015

1,625 views

GATE2005
Consider a disk drive with the following specifications: 16 surfaces, 512 tracks/surface, 512 sectors/track, 1 KB/sector, rotation speed 3000 rpm. The disk is operated in cycle stealing mode whereby whenever one 4 byte word is ready it is sent to memory ... DMA cycle. Memory cycle time is 40 nsec. The maximum percentage of time that the CPU gets blocked during DMA operation is____________

Consider a disk drive with the following specifications:16 surfaces, 512 tracks/surface, 512 sectors/track, 1 KB/sector, rotation speed 3000 rpm. The disk is operated in ...

1.6k views

pC asked Dec 30, 2015

CO and Architecture
co-and-architecture
io-organization
dma

+ –

0 votes

1 answer

Manisha Jaishwal asked May 22, 2022

815 views

#COA #Disk
Consider a disk which has 64 tracks , in every track there are 1024 sectors , each sector has 2048 B . The disk is moving with 3000 RPM . Let the avg seek time is 10 ms and it is required to read a file of 64KB which was placed in outer track ... sector onwards . The current position of read/write head is 16th sector of inner track. What is the time taken to complete disk read operation?

Consider a disk which has 64 tracks , in every track there are 1024 sectors , each sector has 2048 B . The disk is moving with 3000 RPM .Let the avg seek time is 10 ms an...

Manisha Jaishwal

815 views

Manisha Jaishwal asked May 22, 2022

CO and Architecture
co-and-architecture
io-organization
disk

+ –

0 votes

0 answers

Somoshree Datta 5 asked Jan 11, 2019

949 views

Made Easy Test Series
Consider a disk drive with the following specifications. 16 surfaces, 128 tracks / surfaces, 256 sectors / track, 512 B / sector, rotations speed 3600 rpm. The disk is operated in cycle stealing mode whereby whenever one byte word is ready it ... each DMA cycle. Memory cycle time is 50microsec. The maximum percentage of time the CPU gets blocked during DMA operation is______?

Consider a disk drive with the following specifications. 16 surfaces, 128 tracks / surfaces, 256 sectors / track, 512 B / sector, rotations speed 3600 rpm. The disk is op...

Somoshree Datta 5

949 views

Somoshree Datta 5 asked Jan 11, 2019

CO and Architecture
co-and-architecture
disk
dma

+ –

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