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Operating system

The document discusses operating systems, including their definition, structure, features, types, advantages and disadvantages. It defines an operating system as software that manages computer hardware resources. Operating systems provide a user interface, coordinate tasks, establish internet connections and more. They have a kernel at the core and a user interface. Features include being graphical, supporting multiple users, tasks, processors and threads. Types include standalone, server and embedded operating systems. The best operating systems of 2013 are discussed as Ubuntu, Windows 8, Macintosh, Windows 7 and Linux Mint.

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OPERATING SYSTEM Introduction To Computing Presented By: Talha Mahmood Mahwish Kashif Presentation Assigned By Sir Rashid Ansari
Contents: • What is operating system? • Operations of OS • Structure of OS • Features of OS • GUI • Multiuser • Multitasking • Multiprocessing • Multithreading • Types of OS • Advantages and Disadvantages • Best OS of 2013 • Conclusion
What is operating system? Definition: • An operating system (OS) is a collection of software that manages computer hardware resources . Without a computer operating system, a computer would be useless “The operating system acts as a Interface Between the user and computer hardware”
Operations Of OS Start and shut down a computer Coordinate Tasks Establish An Internet Connection Provide a user Interface Configure Devices Control a network Manage Programs Manage Memory Provide Utilities
Structure Of operating system User Interface •User interact with operating system Kernel •Core of operating system, responsible for loading operating system
Features Of Operating System Operating System GUI Multiuser Multitasking Multiprocessing Multithreading
• GUI • GUI - Short for Graphical User Interface, a GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse.
• Multi-user • Multi-user - A multi-user operating system allows for multiple users to use the same computer at the same time and/or different times example (LINUX)
• Multi Tasking • An operating system that is capable of allowing multiple software processes to run at the same time. Below are some examples of multitasking operating systems. • Unix • Windows XP • Windows Vista
• Multi Processing • An operating system capable of supporting and utilizing more than one computer processor. More than one CPUs that can be shared Below are some examples of multiprocessing operating systems. For Example • Linux • Unix • Windows 2000
• Multi Threading • Smaller parts of a program are loaded when needed by OS • Operating systems that allow different parts of a software program to run concurrently Operating systems that would fall into this category are: For example • Linux • Unix • Windows 2000
Types of operating system  Stand Alone operating system.  Server operating system.  Embedded operating system.
Stand Alone operating system WINDOWS MAC OS LINUX Stand Alone operating system/Desktop operating system
Advantages Easy to use Update Gaming Familiar Disadvantages Expensive Not Stable Not secure Advantages & Disadvantages of Windows
Advantages & Disadvantages Of MAC OS Advantages Great GUI Better to graphic designer Stable Secure Disadvantages Not gaming expensive Not all software run
Advantages & Disadvantages of LINUX Advantages Free Secure Low pc requirement Disadvantages Not all software run Hard to learn , use and install Not familiarity
Server Operating system Server operating systems are designed to provide platforms for multi-users , for critical, network applications. Their main purpose is to provide security, stability and collaboration. Most of them come with a pack of dedicated software tools such as Web servers, e-mail agents and terminal services The common applications for server OSes are:  File and printer sharing  Application services (including databases)  Web site services  E-mail, groupware and messaging  Terminal services  Caching
SERVER NEEDS Administration StabilitySecurity Server Needs
Mobile Operating system Mobile OS Symbian OS iPhone OS RIM BlackBerry Windows Mobile Linux Palm OS
BEST OPERATING SYSTEMS OF 2013 • UBUNTO 12.10 • WINDOWS 8 • MACINTOSH • WINDOWS 7 • LINUX MINT
UBUNTO 12.10 PROS: • Elegant Graphics • Virus free • Faster Access • Better Stability • Free ubunto cloud storage. CONS: • It doesn't include audio,video codecs.
WINDOWS 8 PROS: • Better Stability • Can be used as a primary OS. • Awesome supports with tablets. CONS: • Virus Prone. • Paid
MACINTOSH PROS: • Fabulous Graphics. • Better Stability. • Great Effects. • Awesome Interface. CONS: • Virus Prone. • Size is almost 3 GB.
WINDOWS 7 PROS: • Nice Animation. • Better Stability. • Less Vulnerable. • Great Aero Effects. CONS: • Crashes Several Times. • Virus Prone. • Large size almost 3-4 GB.
LINUX MINT PROS: • Virus Free • Faster • Audio and Video pre included. CONS: • Low Graphical User Interface
Conclusion • As Operating System controls and coordinates the use of the hardware among the various applications programs for various uses, we can say that it plays a very important role in computer system.