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Introduction to Linux

A Finnish computer science student, Linus Torvalds being dissatisfied with the DOS that came with the system and wished for a better alternative. He played with a special educational operating system called Minix that was a small version of Unix. But it, too, had limitations, including a restrictive license that he felt stifled improvement. After a while, he decided to write a new operating system that would take better advantage of his hardware. His stated goal at the time was to "write a better Minix than Minix".

Because of the long history of Unix, the elegance of its basic design, the wide variety of software available for it, and his own familiarity with the system, Linus decided to write a version of Unix. This was (and is) a set of programs written for Unix-like operating systems that was freely available with source code. In this way Linux, for the first time came into existence in 1991.

Linux is True, stable multitasking OS. Crashes are extremely rare. You Can Buy (Or Beg, Borrow, or Steal) Linux On CD. Linux is absolutely free and no license is required to use it. Because of the fundamental design of Unix, every application can be run on one machine and display its interface on another machine. Linux is oustanding in the area of memory management. Linux will use every scrap of memory in a system to its full potential. Linux normally uses its own high-performance filesystem, which uses disk space much more efficiently, optimizes for speed on reading and writing, and automatically prevents fragmentation. The Linux filesystem literally does not need a defragmenter, though one is available. The operating system notices when programs make errors writing to the disk and automatically prevents them, so there is usually no need to run a disk checker unless you notice a problem. Because of the automatic disk cacheing that Linux uses, programs don't have to wait for the disk to finish writing data before they can can continue operations, so programs visibly run faster.

The OS Of The Internet

Windows 95/98 with Windows NT, Windows is second to Linux in both web and FTP servers. Solaris, a Unix variant, is the number two news server.) Linux provides not only extremely fast and reliable networking, but dozens of major and minor network services are usually provided when you get Linux. Web servers, file and print servers, ftp servers, time servers, NIS servers, IRC servers, News servers, compute servers, and more are available for free or very little cost. This includes Apache, the most widely-used webserver on the planet (with over 50% market share).

Viruses are unknown in Linux, Crashes are extremely rare.Unix Applications Are Portable, Most Common Unix Applications Are Open-Source Plenty Of Commercial Applications AvailableLinux has been demonstrated more stable than other systems Linux Has An Advanced, Mature Design Even Obsolete Hardware Can Be Made Useful Again With Linux IP Masquerading - Let Everyone On Your Network Access The Internet

 

Linux Provides Some Unusual Network Devices

One of the main use of Linux is in networking, and Linux shines in this category, as noted before. Linux even offers some atypical kinds of network devices:

A single Linux box can use all of these network devices, as well as more traditional ones, and route between them. (Linux boxes make great routers, especially boxes considered obsolete by other operating systems.)

You Can Make A Supercomputer From The Things You Find At Home!

Using Red Hat Linux, NASA developed software that allows ordinary PCs, networked together, to form a real supercomputer capable of delivering impressive performance for a rock-bottom price. This concept has been used by many universities and corporations, due to the spectacular price-performance ratio. Other type of compute farms have been established using Linux, including one used to generate much of the special effects used in the movie Titanic.

Software RAID - Stripe Your Drives Without Extra Hardware.

RAID (or Redundant Array of Independent Disks) is a set of technologies for spreading information across multiple disks. This can be configured to provide increased fault-tolerance, increased performance, or both. Usually this is implemented with special hardware, almost always on SCSI drives.

Linux provides the ability to let the kernel create a "virtual" RAID system, spreading information across multiple disks. It currently supports all major levels of RAID, from Level 0 to Level 5 and Level 0,1. Because it is implemented in software and not hardware, it is generally slower than a hardware-based system, but can be dramatically faster than not having any RAID at all. Also, Software RAID can be implemented on IDE disks as well as SCSI.

By using Linux you can Run Headless, Mouseless, Diskless computers.

The following are benefits of using Diskless computers -