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Operating system.
Functions and components of OS.
Types of OS.
Process and a program.
Operating System
a collection of programs which control the
resources of a computer system
written in low-level languages (i.e. machine-
dependent)
an interface between the users and the hardware
when the computer is on, OS will first load into
the main memory
Operating
System
Device configuration
Controls peripheral devices connected to the computer
File management
Transfers files between main memory and secondary storage,
manages file folders, allocates the secondary storage space, and
provides file protection and recovery
Memory management
Allocates the use of random access memory (RAM) to
requesting processes
Interface platform
Allows the computer to run other applications
Basic functions of the operating system
What is an Operating System (OS)
 An operating system (OS) is a
collection of software that
manages computer hardware
resources and provides common
services for computer programs.
The operating system is a vital
component of the system
software in a computer system.
Application programs usually
require an operating system to
function.
Functions of OS
 Managing resources
 Providing a user interface
 Running applications
 Support for built in utility programs.
 Control to the computer hardware
Components of OS
 Process Management
 Memory management
 I/O Device management
 File system
 Protection
 Network management
 Network services
 User Interface
Types of OS
Real time operating
systems.
Single user, Single Task
Single user, Multi-tasking
Multi user, Multi-tasking.
Features of Operating System
Reliable.
Operational at all times.
Should coordinate and have good control of
input and output operations and the devices on
which they are performed.
Enhance time sharing.
Examples of computing devices which
use OS
Computers
Mobile phones
3d televisions
Video game
ATM
Ticket Wending Machine
Advantages of OS
Easy to use
User friendly
Intermediate between all hardware's and
software's of the system
No need to know any technical languages
Its the platform of all programs
Disadvantages
If any problems affected in OS, you may
lose all the contents which have been
stored already
Unwanted user can use your own system
Process and Program:
A process invokes or initiates a program. It is an
instance of a program that can be multiple and
running the same application.
Example:- Notepad is one program and can be
opened twice.
Examples of operating system are:
Windows
Android
Linux
Mac - Os
Windows
Microsoft Windows is a metafamily of
graphical operating systems developed,
marketed, and sold by Microsoft. It consists
of several families of operating systems, each
of which cater to a certain sector of the
computing industry.
Microsoft introduced an operating environment
named Windows on November 20, 1985, as a
graphical operating system shell for MS-DOS in response to the
growing interest in graphical user interfaces(GUIs).Microsoft
Windows came to dominate the world's personal computer
market with over 90% market share, overtaking Mac OS,
which had been introduced in 1984. However, since 2012,
thanks to the massive growth of smartphones, Windows sells
less than Android, which became the most popular operating
system in 2014, when counting all of the computing platforms
each operating system runs on; in 2014, the number of
Windows devices sold were less than 25% of Android devices
sold. However, comparisons across different markets are not
fully relevant; and for personal computers, Windows is still the
most popular operating system.
Android
 Android is a mobile operating system (OS) currently developed
by Google, based on the Linux kernel and designed primarily
for touchscreen mobile devices such as smartphones and tablets.
Android's user interface is based on direct manipulation, using
touch gestures that loosely correspond to real-world actions,
such as swiping, tapping and pinching, to manipulate on-screen
objects, along with a virtual keyboard for text input. In
addition to touchscreen devices, Google has further
developed Android TV for televisions ,Android Auto for cars,
and Android Wear for wrist watches, each with a specialized
user interface. Variants of Android are also used on
notebooks, game consoles, digital cameras, and other
electronics. As of 2015, Android has the largest installed
base of all operating systems. It is the second most commonly
used mobile operating system in the Unite States, while iOS is
the first.
 Android is developed in private by Google until the latest changes
and updates are ready to be released, at which point the source code
is made available publicly. This source code will only run without
modification on select devices, usually the Nexus series of devices.
The source code is, in turn, adapted by OEMs to run on their
hardware.[Android's source code does not contain the often
proprietary device drivers that are needed for certain hardware
components.
 In 2007, the green Android logo was designed for Google by a
graphic designer Irina Blok. The design team was tasked with a
project to create a universally identifiable icon with the specific
inclusion of a robot in the final design. After numerous design
developments based on science-fiction and space movies, the team
eventually sought inspiration from the human symbol on restroom
doors and modified the figure into a robot shape. As Android is
open-sourced, it was agreed that the logo should be likewise, and
since its launch the green logo has been reinterpreted into countless
variations on the original design
Conclusion
World without Operating system is like human
without heart…
Operatingsystemoverviewconceptsppt 121210232317-phpapp02

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Operatingsystemoverviewconceptsppt 121210232317-phpapp02

  • 1.
  • 2. Operating system. Functions and components of OS. Types of OS. Process and a program.
  • 3. Operating System a collection of programs which control the resources of a computer system written in low-level languages (i.e. machine- dependent) an interface between the users and the hardware when the computer is on, OS will first load into the main memory
  • 4. Operating System Device configuration Controls peripheral devices connected to the computer File management Transfers files between main memory and secondary storage, manages file folders, allocates the secondary storage space, and provides file protection and recovery Memory management Allocates the use of random access memory (RAM) to requesting processes Interface platform Allows the computer to run other applications Basic functions of the operating system
  • 5. What is an Operating System (OS)  An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. The operating system is a vital component of the system software in a computer system. Application programs usually require an operating system to function.
  • 6. Functions of OS  Managing resources  Providing a user interface  Running applications  Support for built in utility programs.  Control to the computer hardware
  • 7. Components of OS  Process Management  Memory management  I/O Device management  File system  Protection  Network management  Network services  User Interface
  • 8. Types of OS Real time operating systems. Single user, Single Task Single user, Multi-tasking Multi user, Multi-tasking.
  • 9. Features of Operating System Reliable. Operational at all times. Should coordinate and have good control of input and output operations and the devices on which they are performed. Enhance time sharing.
  • 10. Examples of computing devices which use OS Computers Mobile phones 3d televisions Video game ATM Ticket Wending Machine
  • 11. Advantages of OS Easy to use User friendly Intermediate between all hardware's and software's of the system No need to know any technical languages Its the platform of all programs
  • 12. Disadvantages If any problems affected in OS, you may lose all the contents which have been stored already Unwanted user can use your own system
  • 13. Process and Program: A process invokes or initiates a program. It is an instance of a program that can be multiple and running the same application. Example:- Notepad is one program and can be opened twice.
  • 14. Examples of operating system are: Windows Android Linux Mac - Os
  • 16. Microsoft Windows is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry.
  • 17. Microsoft introduced an operating environment named Windows on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces(GUIs).Microsoft Windows came to dominate the world's personal computer market with over 90% market share, overtaking Mac OS, which had been introduced in 1984. However, since 2012, thanks to the massive growth of smartphones, Windows sells less than Android, which became the most popular operating system in 2014, when counting all of the computing platforms each operating system runs on; in 2014, the number of Windows devices sold were less than 25% of Android devices sold. However, comparisons across different markets are not fully relevant; and for personal computers, Windows is still the most popular operating system.
  • 19.  Android is a mobile operating system (OS) currently developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, Google has further developed Android TV for televisions ,Android Auto for cars, and Android Wear for wrist watches, each with a specialized user interface. Variants of Android are also used on notebooks, game consoles, digital cameras, and other electronics. As of 2015, Android has the largest installed base of all operating systems. It is the second most commonly used mobile operating system in the Unite States, while iOS is the first.
  • 20.  Android is developed in private by Google until the latest changes and updates are ready to be released, at which point the source code is made available publicly. This source code will only run without modification on select devices, usually the Nexus series of devices. The source code is, in turn, adapted by OEMs to run on their hardware.[Android's source code does not contain the often proprietary device drivers that are needed for certain hardware components.  In 2007, the green Android logo was designed for Google by a graphic designer Irina Blok. The design team was tasked with a project to create a universally identifiable icon with the specific inclusion of a robot in the final design. After numerous design developments based on science-fiction and space movies, the team eventually sought inspiration from the human symbol on restroom doors and modified the figure into a robot shape. As Android is open-sourced, it was agreed that the logo should be likewise, and since its launch the green logo has been reinterpreted into countless variations on the original design
  • 21.
  • 22. Conclusion World without Operating system is like human without heart…

Editor's Notes

  1. A program is a set of instructions that are to perform a designated task, where as the process is an operation which takes the given instructions and perform the manipulations as per the code, called ‘execution of instructions’. A process is entirely dependent of a ‘program’. - A process is a module that executes modules concurrently. They are separate loadable modules. Where as the program perform the tasks directly relating to an operation of a user like word processing, executing presentation software etc.