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.
monoprogramming is when the memory can only process one program at a time were multiprogramming is when the memory can process more than one program
processor must wait for I/O instruction to complete before preceding
A hard real-time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bounded from the retrieval of the stored data to the time that it takes the operating system to finish any request made of it. A soft real time system where a critical real-time task gets priority over other tasks and retains that priority until it completes. As in hard real time systems kernel delays need to be bounded
Where it has to do with symmetrical shapes and there equations.
Operating System level.
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In Multiprogramming it is possible to run several programs at same time rather than one at a time in uniprogramming.. and higher resource utilization.
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
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.
multiprogramming-there is no way for single user to keep either cpu or the io divices busy at all times...
processor must wait for I/O instruction to complete before preceding
Multiprogramming makes effifcient use of the CPU by overlapping the demands for the CPU and its I/O devices from various users. It attempts to increase CPU utilization by always having something for the CPU to execute.
multiprogramming
THE multiprogramming system was created in 1968.
time sharing operating system is user interactive, but multiprogramming operating system need not be user interactive
multiprogramming
timesharing is logical extention of multiprogramming.
Don't tell me what to do.