Types of Operating System

Type	Definition	Example
Batch Processing System	Data along with programs collected and grouped and is processed on later date.	Pay Roll Systems, Stock Control Systems, Billing Systems.
Real Time Systems	These are those operating systems in which input immediately affects the outputs and timing is critical.	Chemical Processing Systems, Nuclear Power Plant Control Systems.
Real Time Transaction	These are those Operating Systems in which input immediately affects the output but timing is not critical.	Air Ticket booking Systems, Hotel Booking Systems.
Proprietary OS	Proprietary OS is licensed under legal right of the copyright holder with the intent that the licensee is given the right to use the software only under certain conditions, and restricted from other uses, such as modification, sharing, studying, redistribution, or reverse engineering	Windows OS all Versions
Open Source OS	These are those OS Software whose Source code is free to users. Anybody can help I development and modifications.	Linux, UNIX
Single User	The Operating System that can be used by one user at a time is called Single User Operating System.	MS DOS
Multiuser	The Operating System that can be used BY Multi Users at same time is called Multi User Operating System.	Suse, Red Hat
Multi Tasking	These are those Operating Systems which run multiple independent computer programs on the same computer; giving the appearance that it is performing the tasks at the same time. This is generally done via time-sharing, which means that each program uses a share of the computer’s time to execute.	Windows NT, Windows XP
Multi Programming	The multiprogramming operating system can execute several jobs concurrently by switching the attention of the CPU back and forth among them.