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Q: operating system ( Answered,   0 Comments )
Question  
Subject: operating system
Category: Computers
Asked by: yancom-ga
List Price: $2.00
Posted: 30 Jul 2003 01:21 PDT
Expires: 29 Aug 2003 01:21 PDT
Question ID: 236845
operating system is divided into four components. Please list and give
a brief description of each component?
Answer  
Subject: Re: operating system
Answered By: tutuzdad-ga on 30 Jul 2003 10:58 PDT
 
Dear yancom-ga;

Thank you for allowing me an opportunity to answer your interesting
question.

The four major divisions of an operating system are Kernel, File
System, I/O System and Shell.

KERNEL: A kernel “arranges the memory management for all the running
processes, and makes sure they all get a fair (or unfair, if you
please) share of the CPU's attention. It also provides a nice, fairly
portable interface for programs to talk to your hardware.”
WHAT IS A KERNEL?
http://www.dirac.org/linux/talks/kernel_compile/01-kernel.html

FILE SYSTEM: “a hierarchical system of folders-within-folders
containing individual files that in turn consist of one or more
strings of bytes”
WHAT IS A FILE?
http://www.talug.org/events/20021211/cmdlinebasics/img4.html

I/O SYSTEM: Basically, an I/O system is a series of “calls” and
“functions” through which your computer searches for programs via
designated substrings (calls) and orders the program matching that
substring to begin it’s designated action (function).
I/O SYSTEM
http://www.starlink.rl.ac.uk/star/docs/ssn26.htx/node14.html

SHELL: A shell is basically a user interface that acts as a command
interpreter. It converts the commands of the user into input that the
computer understands, thus resulting in an action or function.
WHAT IS A SHELL?
http://snap.nlc.dcccd.edu/reference/shellguide/node4.html

I hope you find that that my research exceeds your expectations. If
you have any questions about my research please post a clarification
request prior to rating the answer. I welcome your rating and your
final comments and I look forward to working with you again in the
near future. Thank you for bringing your question to us.

Best regards;
Tutuzdad-ga



INFORMATION SOURCES

UNIX, POSIX, BSD, GNU and Linux
http://www.psychotekk.de/os.htm

WHAT IS A KERNEL?
http://www.dirac.org/linux/talks/kernel_compile/01-kernel.html

WHAT IS A FILE?
http://www.talug.org/events/20021211/cmdlinebasics/img4.html

I/O SYSTEM
http://www.starlink.rl.ac.uk/star/docs/ssn26.htx/node14.html

WHAT IS A SHELL?
http://snap.nlc.dcccd.edu/reference/shellguide/node4.html


SEARCH STRATEGY


SEARCH ENGINE USED:

Google ://www.google.com


SEARCH TERMS USED:

“FOUR COMPONENTS OF AN OPERATING SYSTEM”

“FOUR DIVISIONS OF AN OPERATING SYSTEM”

WHAT IS A KERNEL

WHAT IS A FILE

WHAT IS AN I/O SYSTEM

WHAT IS A SHELL
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