What is operating System and it types?

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 Operating System

  • An operating system or OS is a program that enables the computer hardware to communicate and operate with the computer software.
  • Without a computer operating system, a computer and software program would be useless.
Operating system

Examples of Operating system

There are many examples of Operating system.

  1. UNIX
  2. MS DOS
  3. MS Windows
  4. Windows NT/2000
  5. Mac OS
  6. LINUX
  7. Android
Types of Operating System

There are many types of Operating system.
  1. Batch Operating System
  2. Time sharing Operating System
  3. Distributed Operating System
  4. Embedded Operating System
  5. Real Time Operating System
Batch Operating System

  • Batch operating system is one of the most important type of operating system.
  • In a Batch operating system, the user does not interact directly with operating system instead all instructions are forwarded to the operator.
Examples

  1. Transactions of credit cards
  2. Generation of Bills
  3. Processing of input and ouput in the operating system,etc
Time Sharing Operating System

  • Time sharing OS allows the user to perform more than one task at a time,each task getting the same amount of time to execute.
  • In time sharing operating system,the response is provided to the user within a second.
Examples

  • Multics ,Unix,etc
Distributed Operating System

  • A Distributed OS is a system software over a collection of independent software,networked,communicating and physically separate computational nodes.
  • They handle jobs which are serviced by multiple CPUs.
Examples

  1. AIX Operating system for IBM RS/6000 computers.
  2. Solaries Operating system for sun multiprocessor workstations.
  3. OSF/1 operating system,etc
Embedded Operating System

  • An Embedded OS is a specialized operating system designed to perform a specific for a device that is not a computer.
  • The main work of Embedded OS is to run the code that allows the device to do its work.
Examples
 
  1. Windows Mobile/CE
  2. Cell phones
  3. Linux,etc
Real Time Operating System
  • A Real Time OS is an OS that guarantees real time Applications a certain capability within a specific deadline.
  • In Real time operating system,the response is provided to the user within time contraint.
Examples
  1. Airline 
  2. Traffic control system
  3. Command control system
  4. Network multimedia systems
  5. Robbot,etc


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