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UNIX Tutorial - Introduction Annotated
There are many different versions of UNIX, although they share common
similarities. The most popular varieties of UNIX are Sun Solaris, GNU/Linux, and
MacOS X.
The UNIX operating system is made up of three parts; the kernel, the shell and
the programs.
the programs.
The kernel of UNIX is the hub of the operating system: it allocates time and
memory to programs and handles the filestore and communications in response to
system calls
memory to programs and handles the filestore and communications in response to
system calls
The shell acts as an interface between the user and the kernel.
归类于： 未分类 — swanlin2007 @ 4:30 pm