wndos vs linux
 

what's the main difference b/w windows and linux with respect to hardware acess and security?

This question has been asked a lot of times. Try a forum search. If you have a specific question about differences, post back, but I don't really see the point in answering such a vague question when it's been answered so many times before.

how is linux restricting the access to hardware

starting to sound like homework....

Please give us some context for your question. Are you trying to set up a Linux system? Are you having trouble with an application, device driver, etc.?

If you are a student, tell us what the course is and how far along you are.

actually iam a beginer i am doing course on linux but i couldn't understand the difference.... i understand what security does a linux OS provides but unable tounderstand the difference so plz help me....

I suggest you go look at the linux documentation project with regard to permissions.

Windows Linux Security

These keywords give lots of hits in Google.

Like this one http://www.theregister.co.uk/securit...dows_vs_linux/

If I were you I would go to http://tldp.org they have lots of useful info on this type of stuff

A very good place to start might be to study Windows' security system. If you have (foolishly...) only used Windows as "an Administrator," it may well be that (no disrespect intended...) you know precious little about the very sophisticated security-model that Windows supports!

The Linux system, by comparison, might only provide a much more limited security model; one that is positively naked by comparison. Or, depending upon exactly what release you are using, it might be quite comparable.

The total topic of "computer security" is, naturally, impossible to digest into a single blog-posting. But there is a vast amount of information on the subject out there on the Internet. The question therefore really becomes one of trying somehow to set all of that information into some kind of context! Let me try to provide the barest sketches of one...

First of all, realize that when you use any computer, the programs that you run are executing in an environment that is created by the operating system, be it Windows or Linux or something else. Only the operating system has direct, unfettered access to the hardware of the machine. For everything that your program wishes to do, it must ask the operating system to do it: "No man shall come to the hardware but by me." :) And-d-d-d... the operating system just might say "No!" If that happens, your program is (by design...) in no position to argue.

The operating system makes this determination, on a request-by-request basis, based on some set of rules. Some programs are more "priveleged" than others. Likewise, some users are more "priveleged" than others. The set of rules that govern the operating-system's decisions may be coarse or they may be very fine.