what basically a system call is?
Answers were Sorted based on User's Feedback
Answer / ashish tripathi
user programs cmmunicates with an o.s and request services
from it by system call.The purpose of system call is to
request the o.s to perform some task.every system call has a
library procedure that a user program call....
| Is This Answer Correct ? | 39 Yes | 2 No |
Answer / nish
Our Kernel, inside the OS consists of many things like...system tools,spreadsheets,email....etc..different types of applications....now when a user wants to access one of such application....then that signal is required to be sent to CPU..i.e at the hardware level...so that the respective application can be started.. so...in order to take that signal to CPU a system call is used..hence we can say a set of commands which are used to send signal to the kernel and then that kernel can indirectly connect the h/w and user...a system call is used....
Thanks...Hope i helped...
| Is This Answer Correct ? | 3 Yes | 1 No |
what is the operating system of mac?
If system does not boot What are the files missing ? And how to troubleshoot the problem without reinstalling OS ?
can you create con folder in windows, if not why?
Where the system time is stored? In processor or in separate timer ic for that?
what is busy waiting?
what is the ways to infect the system by virus?
when affected the system from virus , which paths will be it stored in system ?
Explain about operating system of mac?
What is LOM and how do you access it?
Which file system allow as much fragmentation FAT32 or NTFS?
API used to hide window
2 Answers Microsoft, TCS, Wipro,
Explain the ways to infect the system by virus?