Spooling is necessary in batch processing system?


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2011-10-04 19:21:09
2011-10-04 19:21:09

Not necessarily. It depends on what you are processing.

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Spooling in Batch Poerating System utilise the CPU(prevents watage of time) as when no job batch remain to execute by CPU.Spooling is Simultaneous Peripheral Operation Online.

A program reads a large file and gives the report is example of batch processing

in off line spooling user has no interface with systems it strongly used in Batch system' mean's that you submit your request to system , system will cmputing and print result of request without interface with user.

Real time processingIn a real time processing, there is a continual input, process and output of data. Data has to be processed in a small stipulated time period (real time), otherwise it will create problems for the system. For example: assembly line robots and radar system.batch processingIn a batch processing group of transactions collected over a period of time is collected, entered, processed and then the batch results are produced. Batch processing requires separate programs for input, process and output. It is an efficient way of processing high volume of data. For example: Payroll system, Examination system and billing system.

what is batch processing and their examples?

Record Management System, POS, Batch system.

In Batch Processing is an offline system,where time factor is not crucial.In Real-time processing is online,where time factor is very crucial.We cannot make any dealys of time in Real-time system,in comparisons to Batch proceesing Systems.

Batch processing is a systematic execution of a series of tasks or programs on a computer. Characteristics include that processing is done automatically without manual input, and the process amortizes the computer system.

A batch system is used in processing to deliver, supervise, and control the jobs assisted to users in the system. Different types of batch systems are used in universities and other industries to assign resources.

In batch processing the tasks are performed in batches. In time sharing, the operating system shares the time between each task.

The main difference in serial and batch processing is that serial processing is done in a specific sequential order while batch processing is not done in any specific order. Batch processing is done a computer with out any manual intervention.

A transaction processing system is a system that divides work into individual transactions. Types of processing include batch processing, time sharing, real time processing, and transaction processing.

Types[edit]Contrasted with batch processingBatch processing is not transaction processing. Batch processing involves processing several transactions at the same time, and the results of each transaction are not immediately available when the transaction is being entered;[1]there is a time delay. Transactions are accumulated for a certain period (say for day) where updates are made especially after work.[edit]Real-time and batch processingThere are a number of differences between real-time and batch processing. These are outlined below:Each transaction in real-time processing is unique. It is not part of a group of transactions, even though those transactions are processed in the same manner. Transactions in real-time processing are stand-alone both in the entry to the system and also in the handling of output.Real-time processing requires the master file to be available more often for updating and reference than batch processing. The database is not accessible all of the time for batch processing.Real-time processing has fewer errors than batch processing, as transaction data is validated and entered immediately. With batch processing, the data is organised and stored before the master file is updated. Errors can occur during these steps.Infrequent errors may occur in real-time processing; however, they are often tolerated. It is not practical to shut down the system for infrequent errors.More computer operators are required in real-time processing, as the operations are not centralised. It is more difficult to maintain a real-time processing system than a batch processing system.

Batch processing is the execution of a series of jobs in a program on a computer without manual intervention (non-interactive).

Real time processing or Batch processing or Multiprocessing or all of them.

explain the difference between batch processing and real-time processing

With batch processing, there is a list of commands generated and placed in a batch list. When the batch is ready, it is executed. In real-time processing, every command is executed immediately after it's been given.

Batch processing generally means using a scripting language to queue one or more jobs that will work one after the other without any manual intervention. That is, the actual processing is automated, the only input required from the user is in order to set up the batch. Contrast with online or interactive data processing which requires user-input throughout the process. In batch processing, the input is typically generated from input files collated as a batch, and the output of one job can often be used as input for the next job, dependant upon the type of processing. Some software includes batch processing modes of their own, but for those that don't, command sequences can be crafted using scripting languages, either from within the program itself (where supported) or externally at operating system level. Operating system command scripts can also be employed for batch processing, hence they are also known as batch files.

Differentiate between Simple Batch Operating Systems and Time-sharing Operating Systems

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spooling stands for simultaneous peripheral operation on- line. it is a mechanism to deal with following issue:-a) to reduce the speed mismatch between slow input / output devices and CPU for better utilisation of the CPU.b) to convert manually exclusive I/O device into non mutually exclusive I/O devices so that they can be simultaneously used by multiple processes in multiprogramming system.

It is both, it contain both elements of batch processing and elements of real-time processing. PIN verification uses real-time processing and the customer record shall only be updated at the end of the day(batch processing).

Batch processing: collecting jobs in a single batch and then execute them without further interaction what the user. Interactive processing: Allows a program being executed to carry on a dialogue with the user through remote terminals. Requires real-time processing.

Like a spool or a "print spooler", this suggests that spooling orders tasks in a linear fashion to be quickly executed in a sequential manner rather than multitasking several at once.

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