Recent activity by adm1n123 - GATE Overflow

4 answers

1

GATE1998-1.18
Which of the following devices should get higher priority in assigning interrupts? Hard disk Printer Keyboard Floppy disk

commented Nov 20, 2018 in Operating System | 3.8k views

5 answers

2

GATE2007-IT-58
A demand paging system takes $100$ time units to service a page fault and $300$ time units to replace a dirty page. Memory access time is $1$ time unit. The probability of a page fault is $p$. In case of a page fault, the probability of page being dirty is also $p$. It is observed that the average access time is $3$ time units. Then the value of $p$ is $0.194$ $0.233$ $0.514$ $0.981$

commented Nov 16, 2018 in Operating System | 7.1k views

12 answers

3

GATE2004-47
Consider a system with a two-level paging scheme in which a regular memory access takes $150$ $nanoseconds$, and servicing a page fault takes $8$ $milliseconds$. An average instruction takes $100$ nanoseconds of CPU time, and two memory accesses. The ... instruction execution time? $\text{645 nanoseconds}$ $\text{1050 nanoseconds}$ $\text{1215 nanoseconds}$ $\text{1230 nanoseconds}$

commented Nov 14, 2018 in CO and Architecture | 22.2k views

1 answer

4

Let P,Q,R be 3 languages
Let P,Q,R be 3 languages. If P and R are regular and if PQ=R, then a)Q has to be regular b)Q can not be regular c)Q need not be regular d)Q has to be CFL

commented Oct 8, 2017 in Theory of Computation | 1k views

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