Thursday, April 22, 2010

LINUX vs WINDOWS SERVER

LINUX SERVER
Linux is a freely-circulated open source system, which makes it greatly cost-effective for hosts to provide, maintain, and operate. It also has a extremely strong position for both speed and stability. It’s so accepted that the best part of websites are essentially hosted on a Linux operating system.
SECURITY: Although Linux and Windows can both face hacking attempts, for the reason that Linux is open sourced, patches to close security holes are implemented very quickly since so many people contribute to making it better every day.
COST: Yet again, it’s an open source OS, so it doesn’t need any licensing charge for using Linux operating systems. It expenses a smaller amount for the host to offer the service.
1. Linux is free software., Linux is a open-source OS.People can change code .
2. We can Add programs which will help to use your computer better.
3. Linux wants the programmers to extend and redesign it's OS time after time, but with open-source, so you can see what happens and you can edit the OS.
4. The various distributions of Linux come from different companies (i.e LIndows , Lycoris, Red Hat, SuSe, Mandrake, Knopping, Slackware).,Linux is capable of networking, file sharing and being a web server.
5. Linux is very cheap or free.
6. Linux is customizable in a way that Windows is not.
7. Microsoft Windows is a closed-source operating system created by Bill Gates, supreme ruler of the earth. It is gradually losing it's grip on the market because it is insecure, slow, and wasteful.
8. Windows and Linux are two different operating systems. The purpose of an operating system is to: 1. control all the hardware components that are part of your computer. 2. manage a computer's ability to do several things at once 3. provide a base set of services to programs to keep software manufacturers from have to reinvent the wheel a million times for the same thing. The Linux operating system was developed from a base of Unix (another operating system) after the Unix systems stopped being free. The Linux people believe in free and open software, and so they "reinvented" Unix, and improved it slightly to make Linux.
9. Most hard drive installations of Linux utilize a "swap partition", where the disk space allocated for paging is separate from general data, and is used strictly for paging operations. This reduces slowdown due to disk fragmentation from general use.
10. Linux kernel 2.6 once used a scheduling algorithm favoring interactive processes. Here "interactive" is defined as a process that has short bursts of CPU usage rather than long ones. It is said that a process without root privilege can take advantage of this to monopolize the CPU,when the CPU time accounting precision is low. However, Completely Fair Scheduler, now the standard scheduler, addresses this problem

WINDOWS NT SERVER
Windows, similar to your personal computer, is a Microsoft owned commercial operating system. Its major benefit is that it can also run Microsoft software such as Access and MS SQL databases.
SECURITY: Because it is a commercial operating system, it could take a little longer at fixing a few security issues (frequently by releasing security packs) while they must usually be provided through Microsoft.
COST: As you buy Windows for your private computer, servers needs to pay Microsoft for extra licensing amount to make use of their operating system. That’s why hosts generally charge extra for Windows hosting.

1. Window NT is devloped by Microsoft company.
2. Window NT is programmed in C and C++
3. You can't change any thing in windows. you can't even see which processes do what and build your onw extension.
4. All the flavors of Windows come from Microsoft.
5. Windows is expensive
6. Windows is not customizable.
7. Linux is an open source operating system that, until fairly recently, was only used on servers. Now it is used on Mac OS X computers, and more people are starting to use it on computers that aren't servers. It is very secure, efficient, and flexible.
8. Windows and Linux are two different operating systems. The purpose of an operating system is to: 1. control all the hardware components that are part of your computer. 2. manage a computer's ability to do several things at once 3. provide a base set of services to programs to keep software manufacturers from have to reinvent the wheel a million times for the same thing.

Windows is a proprietary operating system owned by Microsoft. It was developed independently from Unix, and its internal details are much different. They should perform the same tasks, however at the deepest levels, details differ, and so a program written to run on Windows will not run on Linux, and vice versa.
Widows comes in several "flavors", like Windows NT, Windows 2000, and Windows XP, all of which are slightly different, but share enough in common that programs written for one flavor will run on the others 99.9% of the time.
9. Windows NT family (including 2000, XP, Vista, Win7) most commonly employs a dynamically allocated pagefile for memory management. A pagefile is allocated on disk, for less frequently accessed objects in memory, leaving more RAM available to actively used objects. This scheme suffers from slow-downs due to disk fragmentation
10. NT-based versions of Windows use a CPU scheduler based on a multilevel feedback queue, with 32 priority levels defined. The kernel may change the priority level of a thread depending on its I/O and CPU usage and whether it is interactive , raising the priority of interactive and I/O bounded processes and lowering that of CPU bound processes, to increase the responsiveness of interactive applications.

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