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System Call Notes | EduRev

Operating System

GATE : System Call Notes | EduRev

The document System Call Notes | EduRev is a part of the GATE Course Operating System.

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Introduction of System Call

In computing, a system call is the programmatic way in which a computer program requests a service from the kernel of the operating system it is executed on. A system call is a way for programs to interact with the operating system. A computer program makes a system call when it makes a request to the operating system’s kernel. System call provides the services of the operating system to the user programs via Application Program Interface(API). It provides an interface between a process and operating system to allow user-level processes to request services of the operating system. System calls are the only entry points into the kernel system. All programs needing resources must use system calls.

Services Provided by System Calls

Process creation and management
Main memory management
File Access, Directory and File system management
Device handling(I/O)
Protection
Networking, etc.

Types of System Calls: There are 5 different categories of system calls –

Process control: end, abort, create, terminate, allocate and free memory.
File management: create, open, close, delete, read file etc.
Device management
Information maintenance
Communication

Examples of Windows and Unix System Calls
System Call Notes | EduRev

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System Call Notes | EduRev notes for GATE is made by best teachers who have written some of the best books of GATE. It has gotten 185 views and also has 4.9 rating. You can download Free System Call Notes | EduRev pdf from EduRev by using search above. You can also find System Call Notes | EduRev ppt and other GATE slides as well. If you want System Call Notes | EduRev Tests & Videos, you can search for the same too. GATE System Call Notes | EduRev Summary and Exercise are very important for perfect preparation. You can see some System Call Notes | EduRev sample questions with examples at the bottom of this page. Complete System Call Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out GATE lecture & lessons summary in the same course for GATE Syllabus. EduRev is like a wikipedia just for education and the System Call Notes | EduRev images and diagram are even better than Byjus! Do check out the sample questions of System Call Notes | EduRev for GATE, the answers and examples explain the meaning of chapter in the best manner. This is your solution of System Call Notes | EduRev search giving you solved answers for the same. To Study System Call Notes | EduRev for GATE this is your one stop solution.

Operating System

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