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Most answered questions under tag os

0 votes
1 answer
Linux : What is address space layout randomization in linux ?
posted Jul 4, 2014 by Sachidananda Sahu
  • os
  • linux
  • compiler
+2 votes
1 answer
OS: What does mean of "rendezvous" condition in the context of operating system ?
posted Jun 28, 2014 by Harshita
  • os
  • operating system
0 votes
1 answer
OS: What is Belady's Anomaly ?
posted Jun 28, 2014 by Harshita
  • os
  • operating system
+1 vote
1 answer
OS: Can someone please explain priority inversion through an example ?
posted Jun 24, 2014 by Neelam
  • os
+1 vote
1 answer
How sbrk and mmap system calls are functionally different ?
posted Jun 22, 2014 by Ganesh
  • os
  • linux
  • systemcall
0 votes
1 answer
What is Semaphore, what is significance of .sem file created?
posted Jun 22, 2014 by Amit Kumar Pandey
  • os
  • semaphore
+1 vote
1 answer
OS: what is difference between system call and api?
posted Jun 22, 2014 by Amit Kumar Pandey
  • os
  • systemcall
  • api
+1 vote
1 answer
What is the difference between Thread safety vs Re entrancy
posted Jun 21, 2014 by Amit Kumar Pandey
  • os
  • reentrant
  • threadsafe
0 votes
1 answer
What is the meaning of thread safe code in context of OS?
posted Jun 21, 2014 by Amit Kumar Pandey
  • os
  • threadsafe
+1 vote
1 answer
How client and server computers update their DNS names?
posted Jun 10, 2014 by Upma
  • networking
  • os
  • dns
+1 vote
1 answer
Unix: why does different types of shells present in Unix ?
posted Jun 7, 2014 by Ganesh
  • unix
  • os
+1 vote
1 answer
OS: Difference between segmentation and paging ?
posted Jun 3, 2014 by Vikram Singh
  • os
  • operating system
0 votes
1 answer
OS: What's difference between hardware interrupt and software interrupt ?
posted Jun 1, 2014 by Ganesh Kumar
  • os
  • linux
  • unix
  • operating system
+1 vote
1 answer
What is the meaning of dispatch latency in context of operating system?
posted May 31, 2014 by Amit Kumar Pandey
  • os
  • operating system
0 votes
1 answer
What is mounting in context of OS?
posted May 31, 2014 by Amit Kumar Pandey
  • os
  • operating system
+1 vote
1 answer
What is placement and replacement algorithms?
posted May 31, 2014 by Amit Kumar Pandey
  • os
+1 vote
1 answer
What is monitors ? How are they different from semaphores?
posted May 31, 2014 by Amit Kumar Pandey
  • os
0 votes
1 answer
When a system in safe state?
posted May 31, 2014 by Amit Kumar Pandey
  • os
+1 vote
1 answer
Which RTOS supports Non-Preemptive scheduling? Why other scheduling methods are supported by such Oses?
posted May 9, 2014 by Prachi Sharma
  • os
  • rtos
+2 votes
1 answer
OS: What is the orphan process and how it can be created ?
posted May 8, 2014 by Ganesh Kumar
  • os
  • linux
+2 votes
1 answer
NTP : How does a system (client) synchronize with a NTP server at the granularity of microseconds ?
posted May 4, 2014 by Vimal Kumar Mishra
  • os
  • networking
+2 votes
1 answer
OS: Hyper threading ?
posted May 3, 2014 by Harshita
  • os
+2 votes
1 answer
Linux: How to check a particular port is already being used by some executable ?
posted Apr 29, 2014 by Harshita
  • linux
  • os
+4 votes
1 answer
Difference between unitasking and multitasking ?
posted Dec 10, 2013 by Diya Sharma
  • os
  • rtos
  • vxworks
  • linux
+5 votes
1 answer
What is difference between VxWorks and GPOS ?
posted Dec 10, 2013 by Vikas Upadhyay
  • vxworks
  • os
  • rtos
+2 votes
1 answer
What are various types of fragmentation in context of operating system?
posted Dec 2, 2013 by anonymous
  • os
+4 votes
1 answer
What is busy waiting in context of operating system?
posted Dec 2, 2013 by anonymous
  • os
+8 votes
1 answer
What is cycle stealing and how it improve the system performance?
posted Nov 21, 2013 by anonymous
  • os
+6 votes
1 answer
OS: What is the Translation Lookaside Buffer
posted Nov 21, 2013 by anonymous
  • os
  • linux
+5 votes
1 answer
What are the conditions that lead to a deadlock in a system?
posted Nov 21, 2013 by Luv Kumar
  • linux
  • os
+3 votes
1 answer
What is the meaning of Reentrancy in operating system?
posted Nov 21, 2013 by Luv Kumar
  • os
  • c programming
+4 votes
1 answer
Difference between Hard and Soft real-time systems?
posted Nov 18, 2013 by anonymous
  • os
  • rtos
+3 votes
1 answer
OS: Difference between pipe and fifo ?
posted Nov 15, 2013 by Ganesh Kumar
  • os
  • c programming
  • c
+3 votes
1 answer
What is the use of setuid bit in Linux?
posted Nov 12, 2013 by Sheetal Chauhan
  • linux
  • os
+4 votes
1 answer
What is the difference between RUDP and UDP?
posted Nov 8, 2013 by Vikas Upadhyay
  • networking
  • os
  • udp
+5 votes
1 answer
How many process will be created ??
posted Nov 4, 2013 by Mona Sharma
  • os
  • c
+2 votes
1 answer
Which data structure is used to store a file into memory and why?
posted Nov 1, 2013 by Meenal Mishra
  • data structures
  • os
+4 votes
1 answer
Why Android can not be treated as a standalone OS for a PC?
posted Oct 30, 2013 by Sonu Jindal
  • android
  • os
+4 votes
1 answer
Can we use socket instead of message queue?
posted Oct 29, 2013 by Vikas Upadhyay
  • os
  • vxworks
  • linux
+5 votes
1 answer
what is the difference between spin lock and condition mutex ??
posted Oct 26, 2013 by Vikas Upadhyay
  • os
  • c
+7 votes
1 answer
How linux mutex is differ from mutex in VxWorks ??
posted Oct 21, 2013 by Vikas Upadhyay
  • os
  • linux
  • vxworks
  • mutex
+2 votes
1 answer
Difference between TSR and TSO program ?
posted Oct 21, 2013 by Neeraj Mishra
  • os
  • c
  • c programming
+3 votes
1 answer
How much memory calloc and malloc can allocate ?
posted Oct 18, 2013 by Neeraj Mishra
  • c
  • c programming
  • os
+2 votes
1 answer
Difference between embedded system and computer system ?
posted Oct 17, 2013 by Vikram Singh
  • os
  • hardware
+2 votes
1 answer
OS: How RPC works ? Can someone please provide real life example ?
posted Oct 17, 2013 by Vikram Singh
  • os
+4 votes
1 answer
Mutex unlock from different thread?
posted Oct 14, 2013 by Vikas Upadhyay
  • c
  • os
  • c programming
+2 votes
1 answer
How I/O controller works for an Operating System?
posted Oct 14, 2013 by Ganesh Kumar
  • linux
  • os
+1 vote
1 answer
what is meant by scheduling?
posted Oct 3, 2013 by Giri Prasad
  • os
  • rtos
  • linux
+3 votes
1 answer
What is the advantage of having virtual address space concept in OS ?
posted Sep 29, 2013 by Vimal Kumar Mishra
  • os
+2 votes
1 answer
How function pointers are shared across different processes?
posted Sep 29, 2013 by Ganesh Kumar
  • os
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