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What is the difference between multitasking and multiprogramming?

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2011-09-14 09:30:02
2011-09-14 09:30:02

Multiprogramming is a method of running several different programs in a computer apparently at the same time.

Usually on a mainframe - the computer has a number of programs loaded into memory and the operating system switches quickly between them, processing a little bit of each one in turn. The high speed of the processor makes it seem like more than one program is being run at the same time.

On a PC it is usually called multitasking.

Answer-multitasking is the process which occur when more than one task(job) are executed by CPU at a time....-.Multitasking should not be confusing with multiple program where by in multiprogram more than one program(task) are in the mein memory but each one are executed by CPU at different time...It is impossible CPU to running more than one program at the same time
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Multitasking is being able to do more than one thing at a time. Multiprogramming is using more than one 'language' to accomplish a task.

timesharing is logical extention of multiprogramming.

First of all there is difference between program and a task. There may be multiple tasks running related to one program at the same time. so if the processor is busy in multiple tasks related to one program then it is multitasking. But if the multiple tasks which the processor is executing concurrently are related to different independent programs then the concept is know as multiprogramming.

no of tasks can be done at a time is called multi tasking no of programmes can be executed in a single system is called multi programming

Multitasking: The ability to execute more than one task at the same time is called multitasking. It involves only one CPU. Multiprogramming: The ability to execute more than one task but not simultaneously is called multiprogramming.

Cooperative multitasking is multitasking tohelp someone else, while peemative multitasking is multiaatsking for yourself.

MULTIPROGRAMING .................. The term multiprograming denotes an operating system that,in addtion to supporting multitasking. In multiprograming more than one jobs are active in memory.Within a very small period more than one jobs are executed simultaneously. MULTITASKING ............... In general multiprogramming implies multitasking,but multitasking does not imply multiprogramming. A multitasking operating system is distinguished by its ability to support concurrent execution of two or more active processes. as discussed actually both multitasking and multiprogramming are same no other answer mentioned are justifiable.....

types of multiprogramming and difference bet multiprocessing and multiprogramming?

multitasking : watching a movie while downloading a song.multiprocessing : processing two Microsoft word file at the same time.multiprogramming : upgrading yahoo messenger and msn messenger at the same time.

multiprogramming or multitasking means more than one program can execute at the same time. It is the allocation of a computer system and its resources to more than one application at the same time. However in uni-programming you can have only one program running at any point in time.

whar are key motivation for the development of multiprogrammig,multitasking,multithreading

the main difference b/w multiprogramming and multiprocessing O.S. is that the previous one is non-interactive O.S. and the later is interactive O.S. By-Satyam Maheshwari

In Multiprogramming it is possible to run several programs at same time rather than one at a time in uniprogramming.. and higher resource utilization.

acc. to me,multiprogramming is based on system level and multitasking is based on user level.operating system can execute a program or application once at a time.it means the code related to other applications would be stored in operating systems but it will activate when that particular application is activated by user. acc. to me,multiprogramming is based on system level and multitasking is based on user level.operating system can execute a program or application once at a time.it means the code related to other applications would be stored in operating systems but it will activate when that particular application is activated by user. acc. to me,multiprogramming is based on system level and multitasking is based on user level.operating system can execute a program or application once at a time.it means the code related to other applications would be stored in operating systems but it will activate when that particular application is activated by user.

multitasking is doing more than two task or more. And combing task is two task

Not really a true statement; both Windows and UNIX have multi-tasking and multi-programming capabilities.

multitasking: more task execute on sevaral cpumultithreading : sevaral part of one program execution

multiprocessor is hardware based while multiprogramming in software based

Multiprogramming is collecting several jobs in a job pool and the OS selects the job from the pool so that the CPU has one job to execute , in case of any IO request for the job in execution the CPU switches to another job here switching is less compared to multitasking.So a computer system which allows such type of switching in between jobs is called a multiprogramming system. Please make note that multitasking is done by user but multiprogramming is done by operating system only.

MultiTasking:In MultiTasking operating system, several jobs are executed in parallel by the operating system, through multiple processors (or) CPUs only.Like .CPU1: Job-ACPU2: Job-BCPU3: Job-CMultiprogramming :The method of Multiprogramming systems comes in the 1960s. In that process several different programs in batch were loaded in the computer memory, and the first one began to run. One program after another executed when the first program reached an instruction waiting for a device that has a message, the context of this program was stored away, and the second program in memory was given a chance to run. The process continued until all programs finished running.By : er.karthikchawda@gmail.com

Multiprocessing / multitasking Multiprocessing is the use of two or more processors in a single computer. to acheive greater throughput, economy of scale and increased reliability.Most multiprocessing systems use symmetric multiprocessing, SMP, (as opposed to asymmetric) where all processes share the processing load equally. Multitasking on the other hand is best explained by first defining what multiprogramming is. Multiprogramming is used to ensure the best effecient use of the CPU. Whenever a CPU is processing a program, which is loaded in memory, and it must wait for resources or I/O then it will sit idly which is a waste of the CPU. Multiprogramming will store a number of 'jobs' in a queue and whenever the CPU is waiting for I/O etc while executing a particular job, it will immediately open the next job in the queue and process that job until such time as it must wait again, and then it can select the next job in the queue or return to the previous job. In this way the CPU idle time is reduced. Multitasking is a logical extension of multiprogramming in that instead of waiting for a process to reach a stage where it must wait for I/O or some resource, it schedules time for each process that is loaded into memory, such that each process appears to the user to be running at exactly the same time.Another name for multitasking is timesharing.

When a person is task switching, they are working on one thing at a time. If a person is multitasking, they are working on more than one thing at once.

-> Difference between process based and thread based multitasking: 1) threads share the same address space where as process doesn't. 2) context switching between threads is usually less expensive than between processes. 3) cost of communication between threads is relatively low.

multi tasting is doing it with some 1 but single tasking is coin it by yrself :)

multiprogramming or multitasking means more than one program can execute at the same time. It is the allocation of a computer system and its resources to more than one application at the same time. However in uni-programming you can have only one program running at any point in time


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