Explain System Calls, Types of System Calls, What Is System Call In Operating System Explain
In This Topic & Blog Having Any Query Then Post your Comment and Suggestion Below
System Calls
• Programming interface to the services provided by the OS• Typically written in a high-level language (C or C++)
• Mostly accessed by programs via a high-level Application
Program Interface (API) rather than direct system call use
• Three most common APIs are Win32 API for Windows,
POSIX API for POSIX-based systems (including virtually
all versions of UNIX, Linux, and Mac OS X), and Java API
for the Java virtual machine (JVM)
• Why use APIs rather than system calls?
Types of System Calls
• Process control• File management
• Device management
• Information maintenance
• Communications