1 what is the main advantage of multiprogramming?

Answer 1

Multiprogramming is the rapid switching of the CPU between multiple processes in memory. It is done only when the currently running process requests I/O, or terminates. It was commonly used to keep the CPU busy while one or more processes are doing I/O. It is now mostly

superceded by multitasking, in which processes also lose the CPU when their time quantum expires.

Multiprogramming makes efficient 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.

The prime reason for multiprogramming is to give the CPU something to do while waiting for I/O to complete. If there is no DMA, the CPU is fully occupied doing I/O, so there is nothing to be gained (at least in terms of CPU utilization) by multiprogramming.

Answer 2

It improves the CPU efficiency by increasing the CPU utilization. It keeps more than one program in the memory and when

a program needs to do I/O, it starts executing another program. Thus no time is wasted and the CPU doesn't need to wait

for the I/O to get completed.

Answer 3

A multithreaded process is one that can fully utilize the processing power of a computer processor. The processor is many times faster than what is required to run a single threaded java application and hence it spends more than 90% of its time idling. Hence multithreaded applications create multiple threads of execution that can be run in parallel thereby better utilizing the processing power of the CPU.

Multithreaded processes are much faster and efficient in processing than single threaded system.

Answer 4

Multiprocessing helps you to several works at one time e.g you are listening songs working on ms word etc.

Answer 5

1. better performance-shorter response time & higher throughput

2. Better Reliability-if one processor brekdown then other takes its workload

Answer 6

Multiprocessing systems can do two processes at the same time. So if a task's resources are not free then the other task is being processed.

Answer 7

nstalling the computer requires a grueling and expensive task of system analysis and design. There is a scarcity of computer professionals to do this.2 The initial investment can

Answer 8

1. Better usage of resource available.
2. Task parallelism.

SP.