Types Of Operating System
2.1 TYPES OF OPERATING SYSTEM
A. Batch Operating System- Batch processing is the most primitive type of operating system. Batch processing generally requires the program, data, & appropriate system commands to be submitted together in the form of a job. Batch operating systems usually allow little or no interaction between users & executing programs. Examples of such programs include payroll, forecasting, statistical analysis, & large scientific number-crunching programs. Serial processing combined with batch like command files is also found on many personal computers. Scheduling in batch is very simple. Jobs are typically processed in order of their submission, that is, first-come first-served fashion.
B. Multiprogramming Operating System- A multiprogramming system permits multiple programs to be loaded into memory & execute the programs concurrently. Concurrent execution of programs has a significant potential for improving system throughput & resource utilization relative to batch & serial processing. This potential is realized by a class of operating systems that multiplex resources of a computer system among a multitude of active programs. Such operating systems usually have the prefix multi in their names, such as multitasking or multiprogramming.
C. Multitasking Operating System- A multitasking OS is famous by its ability to support concurrent execution of two or more active processes. Multitasking is usually implemented by maintaining code & data of several processes in memory simultaneously, & by multiplexing processor & I/O devices among them. Multitasking is often coupled with hardware & software support for memory protection in order to prevent erroneous processes from corrupting address spaces & behavior of other resident processes. Allows more than one program to run concurrently. The ability to execute more than one task at the same time, a task being a program is called as multitasking. The terms multitasking & multiprocessing are often used
A. Batch Operating System- Batch processing is the most primitive type of operating system. Batch processing generally requires the program, data, & appropriate system commands to be submitted together in the form of a job. Batch operating systems usually allow little or no interaction between users & executing programs. Examples of such programs include payroll, forecasting, statistical analysis, & large scientific number-crunching programs. Serial processing combined with batch like command files is also found on many personal computers. Scheduling in batch is very simple. Jobs are typically processed in order of their submission, that is, first-come first-served fashion.
B. Multiprogramming Operating System- A multiprogramming system permits multiple programs to be loaded into memory & execute the programs concurrently. Concurrent execution of programs has a significant potential for improving system throughput & resource utilization relative to batch & serial processing. This potential is realized by a class of operating systems that multiplex resources of a computer system among a multitude of active programs. Such operating systems usually have the prefix multi in their names, such as multitasking or multiprogramming.
C. Multitasking Operating System- A multitasking OS is famous by its ability to support concurrent execution of two or more active processes. Multitasking is usually implemented by maintaining code & data of several processes in memory simultaneously, & by multiplexing processor & I/O devices among them. Multitasking is often coupled with hardware & software support for memory protection in order to prevent erroneous processes from corrupting address spaces & behavior of other resident processes. Allows more than one program to run concurrently. The ability to execute more than one task at the same time, a task being a program is called as multitasking. The terms multitasking & multiprocessing are often used