The document provides an introduction to UNIX and the history of UNIX and Linux. It discusses the following key points:
- UNIX was created in 1969 at Bell Labs to be multi-tasking and multi-user to help scientists with their calculations. It has a philosophy of everything being treated as a file.
- Over time, UNIX split between proprietary UNIX variants from companies like Sun and IBM and non-proprietary variants like BSD and Linux.
- The GNU project was launched in 1984 to create a free UNIX-like operating system. Linux was created in 1991 by Linus Torvalds as a kernel based on UNIX concepts.
- When the GNU software was combined with the Linux kernel, it
This slide explores the basics of UNIX operating system - What's UNIX? What are different types of UNIX OS? What is difference between UNIX and Linux? and much more..
It is a Unix like operating system.
It can run on 32 bit and 64 bit hardware.
Linux OS, is a freely distributable, cross-platform
Supports multiple processors.
True multi-tasking, multi-user OS.
Following are some of the important features of Linux Operating System.
Portable - Portability means softwares can works on different types of hardwares in same way.Linux kernel and application programs supports their installation on any kind of hardware platform.
Open Source - Linux source code is freely available and it is community based development project. Multiple teams works in collaboration to enhance the capability of Linux operating system and it is continuously evolving.
Multi-User - Linux is a multiuser system means multiple users can access system resources like memory/ ram/ application programs at same time.
Multiprogramming - Linux is a multiprogramming system means multiple applications can run at same time.
Hierarchical File System - Linux provides a standard file structure in which system files/ user files are arranged.
Shell - Linux provides a special interpreter program which can be used to execute commands of the operating system. It can be used to do various types of operations, call application programs etc.
Security - Linux provides user security using authentication features like password protection/ controlled access to specific files/ encryption of data.
This slide explores the basics of UNIX operating system - What's UNIX? What are different types of UNIX OS? What is difference between UNIX and Linux? and much more..
It is a Unix like operating system.
It can run on 32 bit and 64 bit hardware.
Linux OS, is a freely distributable, cross-platform
Supports multiple processors.
True multi-tasking, multi-user OS.
Following are some of the important features of Linux Operating System.
Portable - Portability means softwares can works on different types of hardwares in same way.Linux kernel and application programs supports their installation on any kind of hardware platform.
Open Source - Linux source code is freely available and it is community based development project. Multiple teams works in collaboration to enhance the capability of Linux operating system and it is continuously evolving.
Multi-User - Linux is a multiuser system means multiple users can access system resources like memory/ ram/ application programs at same time.
Multiprogramming - Linux is a multiprogramming system means multiple applications can run at same time.
Hierarchical File System - Linux provides a standard file structure in which system files/ user files are arranged.
Shell - Linux provides a special interpreter program which can be used to execute commands of the operating system. It can be used to do various types of operations, call application programs etc.
Security - Linux provides user security using authentication features like password protection/ controlled access to specific files/ encryption of data.
It is a simple powerpoint presentation on Linux Operating System of its brief and simplified introduction of this Operating System.
This is based on Ubuntu version of Linux.
Unix and shell programming | Unix File System | Unix File Permission | BlocksLOKESH KUMAR
Unix and shell programming | Introduction to Unix Operating system | Unix file system | Unix File Permissions | Unix Blocks | Feature of Unix Operating System | Kernel and Shell | Types of Shells
BITS: Introduction to linux, distributions and installationBITS
This slide is part of the BITS training session: "Introduction to linux for life sciences."
See http://www.bits.vib.be/index.php?option=com_content&view=article&id=17203890%3Abioperl-additional-material&catid=84&Itemid=284
What is Linux?
Command-line Interface, Shell & BASH
Popular commands
File Permissions and Owners
Installing programs
Piping and Scripting
Variables
Common applications in bioinformatics
Conclusion
This 1st presentation in the training "Introduction to linux for bioinformatics" gives an introduction to Linux, and the concepts by which Linux operates.
From UNICS To Unix: A brief history: - Early on, in the 1960s and 1970s, every major
computer manufacturer supplied operating system as a proprietary software
The root of all modern language is ALGOL (Algorithmic Language), introduced in the early 1969s. ALGOL was the first computer language to use a block structure. In 1967, Martin Richards developed a language called BCPL (Basic Combined Programming Language) primarily for writing system software. In 1970, Ken Thompson created a language using main features of BCPL and called it simply B. B was used to create early version of UNIX operating system at Bell Laboratories. C was evolved from ALGOL, BCPL and B by Dennis Ritchie at AT & T’s Bell Laboratories in 1972 for use on the UNIX operating system. It has since spread to many other operating systems, and is now one of the most widely used programming languages.
It is a simple powerpoint presentation on Linux Operating System of its brief and simplified introduction of this Operating System.
This is based on Ubuntu version of Linux.
Unix and shell programming | Unix File System | Unix File Permission | BlocksLOKESH KUMAR
Unix and shell programming | Introduction to Unix Operating system | Unix file system | Unix File Permissions | Unix Blocks | Feature of Unix Operating System | Kernel and Shell | Types of Shells
BITS: Introduction to linux, distributions and installationBITS
This slide is part of the BITS training session: "Introduction to linux for life sciences."
See http://www.bits.vib.be/index.php?option=com_content&view=article&id=17203890%3Abioperl-additional-material&catid=84&Itemid=284
What is Linux?
Command-line Interface, Shell & BASH
Popular commands
File Permissions and Owners
Installing programs
Piping and Scripting
Variables
Common applications in bioinformatics
Conclusion
This 1st presentation in the training "Introduction to linux for bioinformatics" gives an introduction to Linux, and the concepts by which Linux operates.
From UNICS To Unix: A brief history: - Early on, in the 1960s and 1970s, every major
computer manufacturer supplied operating system as a proprietary software
The root of all modern language is ALGOL (Algorithmic Language), introduced in the early 1969s. ALGOL was the first computer language to use a block structure. In 1967, Martin Richards developed a language called BCPL (Basic Combined Programming Language) primarily for writing system software. In 1970, Ken Thompson created a language using main features of BCPL and called it simply B. B was used to create early version of UNIX operating system at Bell Laboratories. C was evolved from ALGOL, BCPL and B by Dennis Ritchie at AT & T’s Bell Laboratories in 1972 for use on the UNIX operating system. It has since spread to many other operating systems, and is now one of the most widely used programming languages.
C is a general-purpose high level language that was originally developed by Dennis Ritchie for the Unix operating system. It was first implemented on the Digital Equipment Corporation PDP-11 computer in 1972.
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This C tutorial covers every topic in C with the programming exercises. This is the most extensive tutorial on C you will get your hands on. I hope you will love the presentation. All the best. Happy learning.
Feedbacks are most welcome. Send your feedbacks to dwivedi.2512@gmail.com. You can download this document in PDF format from the link, http://www.slideshare.net/dwivedi2512/learning-c-an-extensive-guide-to-learn-the-c-language
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** Linux Admin Certification Training: https://www.edureka.co/linux-admin **
This Edureka PPT on "Linux vs Windows" will help you understand the basic differences between both of these operating systems while giving you an idea about each of the Operating Systems. This also takes you through the features and limitations of both Linux & Windows.
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Linux is the best-known and most-used open source operating system. As an operating system, Linux is software that sits underneath all of the other software on a computer, receiving requests from those programs and relaying these requests to the computer's hardware.
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UNIX introduction
1. UNIX
Introduction
UNIX Introduction and history
2. Introduction
Your trainer…
Title: Network Engineer
Education: Master Degree in
Network Engineering,
BSC degree in Computer
Engineering
Experience :
Mcse,Mcitp,MCIT UNIX/Linux
trainer.
Contact:
thephilosopher10@gmail.com
Mob.01113555023
Mohammed Hassan
3. Introduction
Objectives
By completing this presentation , you will be able to:
Understand Unix. Its philosophy,
different Unix families.
Discover the free world. Different
licenses.
Discover Linux. From its history
to the application in company.
6. Unix
Preview
Here’s what we’ll see:
Unix utility.
Unix history.
Different Unix.
Targets of Unix.
Unix philosophy
7. Unix
Unix utility
Unix have to:
Work 24/24, 7/7.
Being multi tasks.
Being multi users.
Make scientists calculation.
Being perfectly reliable.
8. Unix
Unix History
Here’s Unix history
1969 1976 1978 1991
Creation by Ken
Thompson and
Denis Ritchie from Creation of Linux
Bell Labs by Linus
Torvalds
Split between
Creation of BSD and type
Apple V Unix
11. Unix
The different Unix
BSD - Berkeley Software Distribution
Licensed
3 major branches :
FreeBDS
NetBSD
OpenBSD
Server/Security oriented
12. Unix
The different Unix
ary Un ix are
Pr opriet ld for
eated and so
cr
comp uters
s pecific
(ex ample
aris/S PARC)
Sol
13. Unix
Targets of Unix
According to its design, Unix targets are:
Scientist
University
Army
States organization
14. Unix
Unix philosophy
Philosophy of Unix system
Everything is a file
Hard Drive, CDROM drive, CPU …
Task segmentation
A program must be portable
Write code quickly and to share with the
community
Correct bugs quickly
15. Unix
Unix philosophy
Advantages and disadvantages of proprietary Unix:
Advantages Disadvantages
Stability Buy cost
High load Resistance Maintenance cost
Security Not User Friendly
16. UNIX
Quiz
The BSD system is a different Unix system
MacOSX is not based on the Unix system
UNIX system is a multi-task system
UNIX system is a multi-user system
17. Introduction
From Unix to GNU/Linux
History and philosophy
18. From Unix to GNU/Linux
Preview
Here’s what we’ll see:
Open source softwares.
Free softwares
GNU / Linux.
Applications.
19. From Unix to GNU/Linux
Open source software
There are two types of software
Binary form
Sources unavailable
Not human understandable
Original form (Source)
O
Human understandable
Access to the sources.
20. From Unix to GNU/Linux
Open source software
Concept of Open Source and Proprietary system
Open Sources Software
– Offer the possibility for the user to access
the source code of the application
Proprietary Software
– Doesn’t offer the access to the source code
21. From Unix to Linux
Free software
To be free a software must respect this 4 rules:
Free to
Free to read the code
execute
Free to
Free to improve
redistribute
22. From Unix to Linux
GNU / Linux
FSF and GNU
Free Software Foundation
1984 by Richard Stallman
A Free clone of Unix free
free as in “free speech”, not as in “free beer”
GNU-GNU’s not UNIX
GPL-General Public License
A legal frame for the free software
Actual version : 3
23. From Unix to Linux
GNU / Linux
The birth of the Linux Kernel
Created in 1991 by Linus Torvalds
Minix clone
Based on concepts and Unix philosophy
Sources available for free on Internet.
A community appeared on internet
Linux is not an operating system
24. From Unix to Linux
GNU / Linux
Very early Richard Stallman
convinces Linus Torvalds to
put the kernel v 0.12 under
GPL license
GNU softwares are then
adapted to work with Linux
kernel
The Linux kernel and GNU
softwares make a true
operating system
GNU + Linux Kernel = GNU/
Linux
25. From Unix to Linux
Distributions
What’s a distribution
A distribution contains often:
A Kernel (sometimes modified).
A software library.
An installation program.
A package manager.
26. From Unix to Linux
Applications
The most used distributions:
27. From Unix to Linux
Application
GNU/Linux is used in company for:
Web server
FTP server
DHCP/DNS server
Proxy/Cache server
Firewall
Embeded systems
28. From Unix to Linux
Applications
Advantage and disadvantages de Linux :
Advantages Disadvantages
Stability No After Sale services
Reliability Lack of Knowledge
Security Not User-friendly
29. From Unix to Linux
Quizz
The FSF was created by Richard Stallman
GNU is Linux
Richard Stallman created the Linux kernel
There are many Linux distributions on the market
30. From Unix to Linux
Stop and Think
Do you have any questions ?