An operating system manages computer hardware resources and acts as an interface between the user and computer. It performs tasks like starting and shutting down the computer, coordinating other tasks, establishing internet connections, and managing programs and memory. Modern operating systems are multi-user, multi-tasking, multi-processing, and multi-threading. They have user interfaces and kernels. Common types include standalone, server, embedded, and mobile operating systems. The best operating systems in 2013 were cited as Ubuntu 12.10, Windows 8, Macintosh, Windows 7, and Linux Mint.
Operating System is a collection of programs that handle many of technical details Related to using a computer. In many ways ,an operating system is most important type of computer program. Without it your computer would be useless.
Definition:-Operating system are program that manages resources, provide user interface, and run applications.
Functions Of Operating System
Features Of Operating Systems
Advantages of Linux
Operating System is a collection of programs that handle many of technical details Related to using a computer. In many ways ,an operating system is most important type of computer program. Without it your computer would be useless.
Definition:-Operating system are program that manages resources, provide user interface, and run applications.
Functions Of Operating System
Features Of Operating Systems
Advantages of Linux
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2. What is operating system?
Definition:
• An operatingsystem (OS) is a
collection of software that
manages computer hardware
resources .
Without a computer operating
system, a computer would be
useless
“The operating system actsas a
Interface Between the user and
computer hardware”
3. 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
4. Structure Of operating system
User Interface
•User interact with operating system
Kernel
•Core of operating system, responsible for loading
operating system
6. • GUI
• GUI- Short for Graphical User Interface, a GUI Operating System contains
graphics and icons and is commonly navigated by using a computer mouse.
7. • 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)
8. • Multi T
asking
• 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
9. • 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
10. • 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
11. Types of operatingsystem
Stand Alone operating system.
Server operating system.
Embedded operating system.
14. Advantages & Disadvantages Of MACOS
Advantages
Great
GUI
Better to
graphic
designer
Stable
Secure
Disadvantages
Not
gaming
expensive
Not all
software
run
15. Advantages & Disadvantages of LINUX
Advantages
Free
Secure
Low pc
requirement
Disadvantages
Not all
software
run
Hard to
learn , use
and install
Not
familiarity
16. 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
25. 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.