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What are the functions of microcomputer operating system?
The operating system has a number of function. Some of them are communicating with peripherals, interfacing, coordinating concurrent processing, resource management, accounting and security and memory management.
concurrent = operating at same time
Multiple processors executing process simultaneously to achieve a better performance cane be termed as concurrent processing. But MS-DOS does not provide such processing. Three major complications of concurrent processing: 1. Operating system has to keep the track of main memory address space allocated to each process so that a process does not affect or harm other processes data. 2. Time overhead is another complication which his caused while switching from one process to another process. Time overhead is required to store the current register values and loading the register values of the next process from its Program Control Block (PCB). 3. Another requirement of Time overload is when a running process requires a large space in memory then other process needs to be dumped back to hard disk.
haha poopy
Serial processing in operating system is one of the types of data processing in the computer. The data is read by the CPU, analyzed, processed and then executed in this system.
Its really so easy to distinguish between the concurrent & parallel threads that A parallel thread is the thread maintained the parallel processing system including the process sheduling system is quite murcible. Where as the concurrent threading is the way of manupulation of a thread using simultaneous process threading. It would be be quite better if the book named "Galvin & Siberscartz" book of "Operating System" the chapter process & threads would be followed for maximum details.
processing
processing
One advantage of installing multiple operating systems on a stand alone microcomputer is that the computer remains usable even if one OS stops working. Also, if a program does not work on one OS, you have the option of trying it on the other OS's.
On the harddrive.
processes are concurrent if they exist at the same time.concurrent process can function completely indepently to one another. two process are concurrent if their execution can overlap in time; that is, the execution of the secon process starts before the first process completes. concurrent processes generally interact through the following mechanisms: Shared variables Message passing