• Mrs.Sowmya K N
• Mrs.Bhavyashree R

This article gives more information about the advanced concepts of operating system. We can say, operating system is an interface between users (people who are using the computer) and the hardware (Physical components of an electronic system). In this article we will reach a brief explanation of the fork () and exec () system call and how it works. Operating system has two modes: Kernel mode and User mode. Kernel mode is convenient for different reasons. Anybody can write kernel code because Linux’s code is free. Kernel mode is used to access physical components and also manages application software and hardware interaction. Kernel mode directly interact with the hardware. When program running under user mode, it needs hardware interaction. User mode does not have direct access to system resources.

Kernel, Linux, Process, fork (), exec ()

"A Study on Circumstances of fork() and exec() process model in Linux System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 3, page no.h144-h147, March-2023, Available :http://www.jetir.org/papers/JETIR2303723.pdf

"A Study on Circumstances of fork() and exec() process model in Linux System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 3, page no. pph144-h147, March-2023, Available at : http://www.jetir.org/papers/JETIR2303723.pdf