Article Side

Online Article Directory!

Hello Guest! Login or Register to submit articles!

Batch Operating System and Timesharing Operating System

By Imran Zafar Subscribe to RSS | January 14th 2012 | Views:

Batch Operating System:

In early computer systems, the user did not interact directly with the computer system. The data and programs were first prepared on the input media such as punched cards or punched tape. The data and programs prepared on the punched tape or punched cards were referred to as jobs. These jobs were submitted to the computer operator. The computer operator would arrange the jobs into proper sequence known as batches and run the batches through the computer. The batch operating system was used to manage and control such type of operations.

The simple batch operating system transfers the jobs to the processor one by one. When one job is completed, then control is transferred to next job. For example, if first job is about to print a document on printer and second job is to execute a program for creating and editing text document. In this case, when first job is completed only then the second job is started.

The first batch operating system was developed in the mid-1950s by General Motors for IBM 701 computers. This system was revised and then implemented on the IBM 704 computers. By the early 1960s, a number of vendors had developed batch processing systems for their computers but the most popular batch operating system was "IBSYS" of IBM. This operating system was developed for the IBM 7090 / 7094 computers.

Timesharing Operating System:

Timesharing system is a multiprogramming, multiprocessing and interactive system. It allows multiple users to share the computer at the same time. This system executes multiple jobs of users by switching among them. Timesharing is used when multiple users are connected to a single computer in a communication network. Each user accesses the computer with its own terminal.

Timesharing operating system uses the CPU scheduling. Each user is assigned a small time unit known as time slice. The job of a user executes within its time slice. When the allocated time period for a job is used, the next job is allocated to it. This process continues in a cycle. Thus at a regular time intervals, some users may logout from the system, while new users may login into the system.

The processor switches so rapidly from one user to the next and each user feels that the entire computer system is dedicated to his use. So the users can interact with their programs, while they are running.

In timesharing system (like multiprogramming system), multiple jobs are also simultaneously loaded in main memory. The main memory cannot accommodate all these jobs at the same time. In this case, the jobs are kept on the disk in the job pool. The jobs in job pool await allocation of main memory. If several jobs are ready to be brought into memory, and if there is not enough room for all of them, then the system must require memory management. Similarly, if many jobs are ready to run at the same time, the system must schedule these jobs. The time-sharing systems must also provide a file system management to manage the input and output data of the multiple users.

Timesharing system (and multiprogramming system) also creates challenges for the operating system. If there are multiple jobs in memory, then they must be protected from interfering with each other such as modifying each other's data.

One of the first timesharing operating system was the Compatible Time-Sharing System (CTSS). This operating system was first developed for the IBM 709 in 1961 and later transferred to IBM 7094. Nowadays examples of important timesharing operating systems are UNIX, Linux, Windows NT Server and Windows 2000 Server.

Imran Zafar - About Author:
Imran Zafar writes articles about computer basics and database management such as
functions of database administration,

logical database design
and algorithm evolution.

Share on Facebook Tweet It Stumbleupon this post This post is delicious !

Article Source:

Related Computer Articles Subscribe to RSS

Boot your crashed system via Windows 7 Boot Disk
Published by Max Webstar on February 17th 2012 | Computer
An error message such as dialog box appears when unexpected condition is occurred. It simply shows t...
How to recover your system from being crashed
Published by Max Webstar on February 17th 2012 | Computer
These are not only providing the virtual platform for the users to manage all their tasks with real ...
The benefits and the know-how of remote computer operating:
Published by Heather Protz on March 30th 2012 | Computer
With remote computing, you can operate a system virtually from another computer in an outside locati...
Effects of application tracking system in mobile telephone technology
Published by Jay Donaldson on March 29th 2012 | Computer
Application tracking solutions have become an important means for companies to track and carry out r...
Printers that work with continuous ink supply system
Published by Jack on April 27th 2012 | Computer
You can install CISS on almost all printers. With some printers may be harder to install a bulk ink ...
Discuss 5 major issues that slows down a system performance
Published by Warnerbob on March 27th 2012 | Computer
Get to know about the five major causes that slow down a PC’s performance and also get to know abo...
What is a cloud CRM system
Published by Abigail Johnson on July 20th 2012 | Computer
What is a cloud CRM system
What is a cloud CRM system and does your business need one? A cloud C...
Boot disk failure inserts system
Published by Max Webstar on February 17th 2012 | Computer
This issue can be caused due to boot option are not properly set or many other causes like non boota...
The all new restaurant POS system eliminates the middle man today
Published by Brijesh on July 20th 2012 | Computer
When it comes to a restaurant that has no POS System, let’s go that restaurant today....
What is the chargeback management system?
Published by Hemelwasen on November 28th 2011 | Computer
Each chargeback fraud, there are many different strategies being deployed in the system to give a sp...
The Benefits of an Effective Contract Management system
Published by Ashley Soutter on March 3rd 2012 | Computer
The main purpose of the Contract Management Software is to manage and organize the contract of the c...
The continuous ink supply system - what you need to know
Published by Julia Bennet on March 28th 2012 | Computer
The modern bulk inking systems ensure that print quality is never compromised. You may have experien...