Types of operating systems

Today there are lot of operating systems in the internet but actually they are only based on these main operating systems. What we see on internet is that windows is an OS, Linux is an OS but actually it is not really true. These are true only in simple understanding but when we explore computers more then we see there are lot of types of operating systems available in the market. These are written below......

1. Batch Operating System
2. Multi-programming OS.
3. Time-sharing or multitasking operating systems
4. Distributed operating System
5. Network operating System
6. Real Time operating System

• Hard real--time systems
• Soft real--time systems
  

Batch operating system:

• These operating system can not interact directly with the computer.
• Batch processing is a technique in which an Operating System collects the programs and data together in a batch before processing starts.
  

 

Multi-programming OS:

• These type of OS are able to run multiple jobs simultaneously in the memory.
• For it, memory is considered as a partitioned device, so that each job can reside in a partition.

 

Time-sharing or Multitasking operating systems:

• Time-sharing is a technique which enables many people, located at various terminals, to use a particular computer system at the same time.
• Time-sharing or multitasking is a logical extension of multi-programming.
  

 

Distributed operating System:

• Distributed systems use multiple central
  processors to serve multiple real-time
  applications and multiple users.
• Data processing jobs are distributed among the
  processors accordingly. 

Network operating System:

• These Operating System runs on a server and provides the server the capability to manage data, user's, groups, security, applications, and other networking functions.
• The main(primary) purpose of these kind of operating system is to allow shared file and printers access among multiple computers in a network, typically a local area network (LAN), a private network or to other networks.

Real Time operating System:

• It can be defined as a data processing system, where the time interval required to processes and respond to inputs is so small, that it controls the environment.
• The time taken by the system to respond to an input and display of required updated information is termed as the response time. So in this method, the response time is very less as compared to online processing. 

Hard real--time systems:

• Hard real--time systems guarantee that critical tasks complete on time.
• In hard real-time systems, secondary storage is limited or missing and the data is stored in ROM.

Soft real-time systems:

• Soft real-time systems are less restrictive. A critical real-time task gets priority over other tasks and retains the priority until it completes.
• Soft real-time systems have limited utility than hard real-time systems.

 

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