What is Linux?
Linux is, in simplest terms, an operating system. It is the software of OS on a computer that enables applications and the computer operator to access the devices on the computer to perform object functions. The operating system (OS) relays instructions from an application to, for instance, the computer’s processor. The processor performs the instructed task, and then sends the results back to the application via the operating system.
One of the most important things about Linux is where it can be used. Windows and OS X are commonly used as personal 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 Cray OS and AS/400.
- It is free software, as defined by the Free Software Foundation (FSF), is a “matter of liberty, not price.” To qualify as free software by FSF standards, you must be able to:
- Run the program for any purpose you want to, rather than be restricted in what you can use it for.
History of Linux:
The History of Linux started in 1991 with the commencement of a personal project by a Finnish student, Linus Torvalds, to create a new free operating system kernel.
Since then, the resulting Linux kernel has been marked by constant growth throughout its history. Since the initial release of its source code in 1991, it has grown from a small number of C files under a license prohibiting commercial distribution to the 3.10 version in 2013 with more than 16 million lines of source code under the GNU General Public License.
A famous professor Andrew Tanenbaum was developed Minix, a simplified version of UNIX that runs on PC
Minix is for class teaching only. No intention for commercial use
In September 1991, while attending the University of Helsinki, Torvalds became curious about operating systems and frustrated by the licensing of MINIX, which limited it to educational use only. He began to work on his own operating system which eventually became the Linux kernel.
Types Of Software in Linux:
Red Hat Linux:
- One of the original Linux distribution.
- The commercial, non-free version is Red Hat Enterprise Linux, which is aimed at big companies using Linux servers and desktops in a big way.
- Free version: Fedora Project
It is a free software distribution. It is Popular for use on servers. However, Debian is not what many would consider a distribution for beginners, as it’s not designed with ease of use in mind.
SuSE was recently purchased by Novell. This distribution is primarily available for pay because it contains many commercial programs, although there’s a stripped-down free version that you can download.
Mandrake is perhaps strongest on the desktop. Originally based off of Red Hat Linux.
Gentoo is a specialty distribution meant for programmers.
Advantage Of Linux:
- We don’t need to spend time and money to obtain licenses since Linux and much of its software come with the GNU General Public License.
- Linux doesn’t need to be rebooted periodically to maintain performance levels.
- Linux provides persistent high performance on workstations and on networks
- Linux was developed by the group of programmers over the Internet and has therefore strong support for network functionality; client and server systems can be easily set up on any computer running Linux.
- Linux can be used for high-performance server applications, desktop applications, and embedded systems.
- It runs all common UNIX software packages and can process all common file formats.
- A large number of Linux distributions gives you a choice. Each distribution is developed and supported by a different organization.
- Most Linux distributions come with user-friendly installation and setup programs.
- Linux continues work well even when the hard disk is almost full.
- Linux is designed to do many things at the same time.
- Linux is one of the most secure operating systems. “Walls” and flexible file access permission systems prevent access by unwanted visitors or viruses.
Linux System Archetecture:
Linux System Architecture is consists of following layers:
- Hardware layer – Hardware consists of all peripheral devices (RAM/ HDD/ CPU etc).
- Kernel – the Core component of Operating System, interacts directly with hardware provides low-level services to upper layer components.
- Shell – An interface to the kernel, hiding the complexity of kernel’s functions from users.
- Utilities – Utility programs giving user most of the functionalities of an operating system.
Applications Supported By Linux:
- Editing Documents : (OFFICE SOFTWARE) word processor, spreadsheet, presentation and database application
- For surfing: Firefox is used
- For audio: the xmms (x multimedia system), which is used to play digital sound files
- Sound juicer cd ripper: burn your own CDs
What will we learn after completion of Linux Course?
- Learn entry-level open source concepts
- Enhance your understanding of the Linux command line
- Learn how Linux is used
- Hands-on using a Linux virtual machines
- Working knowledge of Linux
- Navigate through major Linux distributions
- System configurations and graphical interface of Linux
- Basic Linux command line operation
- Most common applications of Linux
- Basics of the Linux Command Line Interface (LCI)
- Hands-on using a Linux virtual machine (provided free of charge)
- Access the command line.
- Manage files from the command line.
- Create, view, and edit text files.
- Manage local Linux users and groups.
- Monitor and manage Linux processes.
- Install and update software.
What are the Prerequisites to learn Linux?
Our Experienced trainers will teach from basics, if you have a basic idea of Operating Systems, basic Computer knowledge is an added advantage for this course.
Course Finished Certificate :
After finish, the course we provide Linux course finished certificate of kits technologies looks like