4. An operating system (OS) is software
that
manages computer
hardware and software resources and
provide common services for computer
programs and provides you with the
capability of communicating with your
computer.
s
5. Operating systems that allow
different parts of a software
program to run concurrently
Smaller parts of a program are
loaded when needed by OS
7. Operating system
Multiuser Multitasking Multiprocessing Multithreading
when two or more users
can work with programs
and share peripheral
devices (printer, scanner,
fax)
multiple applications
operated at the same
time
more than one CPUs
that can be shared
smaller parts of a program
are loaded when needed by
OS
10. The history of Microsoft began on April 4, 1975, when it
was founded byBill Gates and Paul Allen in Albuquerque.
Microsoft Windows is a series of software operating
systems and graphical user interfaces produced by Microsoft.
Microsoft first introduced an operating environment
named Windows in November 20, 1985 as an add-on to MS-DOS
as windows 1.0
11. Faster boot
Not Secure
More diagnostics tools and repair
solutions.
Pretty much the same speed using 8
as 7
15. WHAT IS LINUX ?
Linux is a generic term referring to Unix-
like graphical user interface (GUI) based
computer operating systems.
It is Multi-user, Multitasking,
Multiprocessor
Coexists with other Operating Systems
Runs on multiple platforms
16. • GNU Project started in 1984 to create
“free” UNIX clone.
• LINUX kernel created by Finnish
college student, Linus Torvalds in
1991.
LINUS TORVALDS
17. BEFORE LINUX
• In 80’s, Microsoft’s DOS was the dominated OS for
PC
• Apple MAC was better, but expensive
• UNIX was much better, but much, much more
expensive. Only for minicomputer for commercial
applications
• People was looking for a UNIX based system, which
is cheaper and can run on PC
19. LINUX SOFTWARES
Red Hat Linux : One of the original Linux
distribution.
The commercial, nonfree version is Red
Hat Enterprise Linux, which is aimed at big
companies using Linux servers and
desktops in a big way
Debian GNU/Linux : A free software
distribution. Popular for use on servers
Gentoo Linux : Gentoo is a specialty
distribution meant for programmers
20. UBUNTU
• Ubuntu is a free Linux distros
• Ubuntu is reliable and stable.
• Ubuntu is the distribution with the biggest software
• repositories.
• Ubuntu has a good hardware support for most available
companies.
• Ubuntu have a lot of variants (Kubuntu, Xubuntu,
Edubuntu, Goubuntu, MIDI Ubuntu).
21. WHY LINUX?
•Powerful
• Runs on multiple hardware platforms
• Users like its speed and stability
• No requirement for latest hardware
• It’s “free”
• Licensed under GPL
• Vendors are distributors who package Linux
22. A multi-user operating system allows for multiple users to use the
same computer at the same time and/or different times.
Multiprocessing
An operating system capable of supporting and
utilizing more than one computer processor
Multi-user
Multitasking
An operating system that is capable of allowing multiple software
processes to run at the same time
Multithreading
Operating systems that allow different parts of a
software program to run concurrently.
23. Open Source Software
People improve it, people adapt it, people fix bugs.
And this can happen at a speed that, compared to
conventional software development, seems
astonishing
24. As there is a
limited access
Of user to basic
files and folders, in
Linux network it
provide security to
user’s privacy.
Without
disclosing the
secured data
Linux acts as a
efficient server
Linux Provide Security
25.
Linux is Virus Free!!
Linux is "virus-
free" in that
there are
essentially no
viruses for
Linux in the
wild, although
research
viruses
certainly do
exist.
29. Market Share
Windows Linux
Estimated Desktop Usage
Share
84.07% (w3counter) 1.71% (w3counter)
Server market share 73.9% (officially registered) 21.2% (officially registered)
Top 500supercomputer
operating system family share
1.0% (absolute 5) 91.0% (absolute 455), the 14 fastest
supercomputers run Linux
30.
• Linux systems are extremely stable
• Linux is Free
• No threat of viruses
• Linux comes with most of the required software pre- installed
• Update all your software with minimum fuss
• Linux never gets slow
• Linux does not need defragmentation
• Linux can even run on oldest hardware
• Adding more software is a matter of a few clicks
• Most Windows-only apps have their either their native version or
alternatives for Linux
• With Linux, you get the highest degree of possible customizability
ADVANTAGES OF
LINUX
