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#4: System Calls in OS

Last updated on Jan. 23, 2021, 7:01 p.m. by None

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What is a System Call? - Explained in detail

ØWhat is a System Call?

  • In simple words, it is a method of transiting from user mode to kernel mode.
  • System calls provide services of OS to the users through API’s.

Types of System Calls-:


1)File management-:Open(),Read(),Write(),close()

2)Device Related-Read,Write,ioctl,fcntl

3)Process Control-fork,wait,signal,abort,getpid,getppid

4)Information Maintenance-:getSystemTime and data,get or set time and date

5)Communication-pipe,create/delete connections,shmget


You can refer to this YouTube video for Video Explanations


by None

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