LINUXPRESENTED BY:

Jashanpreet Singh

Founder @ The Techy Roof

WHAT IS LINUX

• Linux is PC-UNIX in which the kernel was created for PC/AT compatibles

by Linus Torvalds of Finland. The name is derived from the kernel's creator.

• Linux is, in simplest terms, is an OPERATING SYSTEM.

• It is the software on a computer that enables applications and the computer

operator to access the devices on the computer to perform desired functions.

• Linux is very similar to other operating systems, such as Windows and OS X.

BIRTH OF LINUX

• On August 25, 1991, a Finn computer science student named Linus Torvalds made the following

announcement to the Usenet group comp.os.minux:

“I'm doing a (free) operating system for 386(486) AT clones. This has been brewing since april, and is starting to get

ready. I'd like any feedback on things people like/dislike in minix, as my OS resembles it somewhat “

• The “Minix” Torvalds referred to is a variant of the UNIX operating system, used as a guideline for

his free operating system he wanted to run on the x86-based consumer PCs of the day.

• “gnu” refers to the set of GNU tools first put together by Richard Stallman in 1983. UNIX, the

operating system that started it all, had its origins in the old Bell Labs back in the early 60s.

• Torvalds built the core of the Linux operating system, known as the kernel.

• A kernel alone does not make an operating system, but Stallman's GNU tools were from a

project to create an operating system as well a project that was missing a kernel to make

Stallman's operating system complete.

• Torvalds' matching of GNU tools with the Linux kernel marked the beginning of the Linux

operating system as it is known today.

• Today, Linux is a multi-billion dollar industry, with companies and governments around the

world taking advantage of the operating system's security and flexibility.

• One of the most noted properties of Linux is where it can be used. Windows and OS X are predominantly found on personal computing devices such as desktop and laptop computers.

• Other operating systems, such as Symbian, are found on small devices such as phones and PDAs, while mainframes and supercomputers found in major academic and corporate labs use specialized operating systems such as AS/400 and the Cray OS.

• Linux, which began its existence as a server OS and has become useful as a desktop OS, can also be used on all of these devices. “From wristwatches to supercomputers,” is the popular description of Linux' capabilities.

WHERE LINUX IS?

Watches

Embedded

Devices

Raspberry

Pi

Servers

Tablets

DesktopsSupercomputer

Clusters

MainframesPhonesLaptops

LICENSING

• Code is contributed to the Linux kernel under a number of licenses, but all

code must be compatible with version 2 of the GNU General Public License

(GPLv2), which is the license covering the kernel distribution as a whole.

• Copyright assignments are not required for code contributed to the kernel.

All code merged into the mainline kernel retains its original ownership; as a

result, the kernel now has thousands of owners.

COMMUNITY

Linux communities come in two basic forms:

• DEVELOPER COMMUNITY

• USER COMMUNITY

DEVELOPER COMMUNITY

• One of the most compelling features of Linux is that it is accessible to

developers; anybody with the skills can improve Linux and influence the

direction of its development.

• Developer communities can volunteer to maintain and support whole

distributions, such as the Debian or Gentoo Projects.

USER COMMUNITY

• User can make valuable contributions to the development of Linux.

• With online communities such as Linux.com, LinuxQuestions, and the many

and varied communities hosted by distributions and applications, the Linux

user base is an often vocal, usually positive advocate and guide for the Linux

operating system.

DISTRIBUTION

Although Linux is originally the kernel created by Linus, it does not function as an OS generally available with only the kernel.

The combination of the kernel and some application software supporting it for use as a OS is called a "distribution".

TYPES OF DISTRIBUTION:

1. REDHAT SERIES

2. SLACKWARE SERIES

3. DEBIAN SERIES

Redhat series:The main distributions are the following:

Turbo Linux

LASER5 Linux

Kondara MNU/Linux

Vine Linux

Slackware series:The main distributions are the following:

Slackware

Plamo Linux

Debian series :The main distribution is the following:

Debian GNU/Linux

WHY ONE SHOULD GO FOR LINUX ??

• Free for download: no licensing issues or costs

• Freedom to share with your neighbour

• Impervious to viruses: No need to install Antiviruses

• Easy to use

• Ported to a large number of hardware platforms: x86, x64, ARM, PowerPC, MIPS, S/390, Super H, AMD x86-64, VAX

• Available in almost any language

• Flexible: can be run on everything from watches to supercomputers

Linux: Over 300 distributions!

Linux Has Very Modest Goals

*As an Engineer or Programmer One should be Perfect in Linux.

*GOLDEN LINE:

I wish you…

BIBLIOGRAPHY

• http://en.wikipedia.org/wiki/Linux.

• www.linux.com/introduction

• http://www.linuxfoundation.org/what-is-linux

• http://en.wikipedia.org/wiki/List_of_Linux_distributions