diff between "system calls" and "kernel threads"

[shariefbe]

Hello,
May i know what is the difference between systems calls and kernel threads. I googled for the answer but as a newbie i didnt get understand what the difference?

[khafa]

In a nutshell a thread is a special(lightweight) process while system calls are the way user space applications access low level resources(like hardware ). For example when you use a high level language and want to write to disk the compiler transforms the write instruction to the write system call and lets the Linux kernel manage the actual work.

[ivandn]

System Calls are the interface for a user program to access functions inside the kernel space. That has nothing to do with kernel threads.