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System calls, Processes, Threads, Inter‐process communication, Concurrency and synchronization. Deadlock. CPU scheduling. Memory management and Virtual memory. File systems. Disks is also under this

$$\scriptsize{\overset{{\large{\textbf{Mark Distribution in Previous GATE}}}}{\begin{array}{|c|c|c|c|c|c|c|c|}\hline
\textbf{Year}& \textbf{2022} & \textbf{2021-1}&\textbf{2021-2}&\textbf{2020}&\textbf{2019}&\textbf{2018}&\textbf{2017-1}&\textbf{2017-2}&\textbf{2016-1}&\textbf{2016-2}&\textbf{Minimum}&\textbf{Average}&\textbf{Maximum}
\\\hline\textbf{1 Mark Count} & 2 &4&2&2&2&3&2&2&1&1&1&2.1&4
\\\hline\textbf{2 Marks Count} & 4 &1&3&4&4&3&2&2&4&3&1&3&4
\\\hline\textbf{Total Marks} & 10 &6&8&10&10&9&6&6&9&7&\bf{6}&\bf{8.1}&\bf{10}\\\hline
\end{array}}}$$

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Previous GATE Questions in Operating System

30 votes
1 answer
282
GATE CSE 2001 | Question: 1.12
A processor needs software interrupt to test the interrupt system of the processor implement co-routines obtain system services which need execution of privileged instructions return from subroutine
A processor needs software interrupt totest the interrupt system of the processorimplement co-routinesobtain system services which need execution of privileged instructio...
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41 votes
6 answers
288
GATE CSE 2000 | Question: 1.20, ISRO2008-47
Which of the following need not necessarily be saved on a context switch between processes? General purpose registers Translation look-aside buffer Program counter All of the above
Which of the following need not necessarily be saved on a context switch between processes?General purpose registersTranslation look-aside bufferProgram counterAll of the...
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10 votes
2 answers
289
GATE CSE 1992 | Question: 12-a
Draw the precedence graph for the concurrent program given below S1 parbegin begin S2:S4 end; begin S3; parbegin S5; begin S6:S8 end parend end; S7 parend; S9
Draw the precedence graph for the concurrent program given belowS1 parbegin begin S2:S4 end; begin S3; parbegin S5; begin S6:S8 end parend end; S7 parend; S9
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24 votes
4 answers
291
GATE CSE 1992 | Question: 02-xi
A computer system has $6$ tape devices, with n processes competing for them. Each process may need $3$ tape drives. The maximum value of n for which the system is guaranteed to be deadlock-free is: $2$ $3$ $4$ $1$
A computer system has $6$ tape devices, with n processes competing for them. Each process may need $3$ tape drives. The maximum value of n for which the system is guarant...
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26 votes
5 answers
292
GATE CSE 1992 | Question: 02,x, ISRO2015-35
At a particular time of computation, the value of a counting semaphore is $7$. Then $20$ $P$ operations and $15$ $V$ operations were completed on this semaphore. The resulting value of the semaphore is : $42$ $2$ $7$ $12$
At a particular time of computation, the value of a counting semaphore is $7$. Then $20$ $P$ operations and $15$ $V$ operations were completed on this semaphore. The resu...
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24 votes
1 answer
295
GATE CSE 1991 | Question: 02-iii
Match the pairs in the following questions by writing the corresponding letters only. ...
Match the pairs in the following questions by writing the corresponding letters only.$$\begin{array}{|ll|ll|}\hline \text{(a)} & \text{Buddy system} & \text{(p)} & \tex...
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16 votes
1 answer
297
GATE CSE 1991 | Question: 01-xii
A given set of processes can be implemented by using only parbegin/parend statement, if the precedence graph of these processes is ______
A given set of processes can be implemented by using only parbegin/parend statement, if the precedence graph of these processes is ______
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29 votes
3 answers
299
GATE CSE 2008 | Question: 66
A process executes the following code for(i=0; i<n; i++) fork(); The total number of child processes created is $n$ $2^n-1$ $2^n$ $2^{n+1} - 1$
A process executes the following codefor(i=0; i<n; i++) fork();The total number of child processes created is$n$$2^n-1$$2^n$$2^{n+1} - 1$
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