1
GATE CSE 1990
True or False
+2
-0
State whether the following statements are TRUE or FALSE with reason.
The Link-load -and-go loading scheme required less storange space than the Link-and-go loading scheme.
A
TRUE
B
FALSE
2
GATE CSE 1990
True or False
+2
-0
State whether the following statement are TRUE or FALSE with reason. The data transfer between memory and $${\rm I}/O$$ devices using programmed $${\rm I}/O$$ is fasterthan interrrupt-driven $${\rm I}/O$$.
A
TRUE
B
FALSE
3
GATE CSE 1990
Subjective
+5
-0
A certain moving arm disk-storage device has the following specifications:
Number of tracks per surface $$=4004$$
Track storage capacity $$=130030$$ bytes
Disk speed $$=3600$$ rpm
Average seek time $$=30$$ m secs.
Estimate the average latency the disk storage capacity and the data transfer rate.
4
GATE CSE 1990
Subjective
+5
-0
Assuming the current disk cylinder to be $$50$$ and the sequence for the cylinders to be
$$1, 36, 49, 65, 53, 1, 2, 3, 20, 55, 16, 65$$ and $$78$$ find the sequences of servicing using
(i) shortest-seek time first $$(SSTF)$$
(ii) elevator disk scheduling polices.
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