Operating system problems, computer science, Basic Computer Science

Operating system problems, computer science, Basic Computer Science

Assignment Help:

1. In discussing software algorithms for mutual exclusion, we noted that optimizing compilers and out-of-order execution by processors could invalidate most of these algorithms because such “optimization” does not take into account that the value of a shared variable can be changed by something other than the immediately evident code. This overly-simplistic characterization also happens with I/O devices, especially simple programmed I/O where data or control register contents changes as a result of the state of the device, not as a consequence of execution of processor instructions, as well as with clocks where the current time register changes continually. It also happens when DMA is used to input blocks of data, which is slightly more complex because the addresses whose value changes are not evident literally. What does this imply about device drivers?

Related Discussions:- Operating system problems, computer science

Introduction to computer technology, excel grade book

excel grade book

Operating system, Operating System: Operating System is the software ...

Operating System: Operating System is the software that manages all the computers' resources to optimize its performance provides common services for efficient execution of v

Fundamental of algorithm, exchanging the two variables: problem,algorithm d...

exchanging the two variables: problem,algorithm development,discription

How can we create a fcb file?, Creating a new file For the formation of fil...

Creating a new file For the formation of files the 21H interruption 16H function is used. DX must identify a control structure whose necessities are that as a minimum the logic uni

Explain the working of character recognition, Question 1 Explain the follo...

Question 1 Explain the following terms associated with Pattern Recognition Features Collection Question 2 Explain the working of character recognition with a suit

Explain particle collision in detail, Question 1 Name the different types ...

Question 1 Name the different types of emitters and explain them in brief Question 2 List and explain the Particle Attributes Question 3 Explain Particle Collision

Algorithm, What are the characteristics of algorithm?

What are the characteristics of algorithm?

Javascript, Need help with javascript sb.append questions

Need help with javascript sb.append questions

How to find percentage in c++, I have written all formulas fine but still i...

I have written all formulas fine but still its showing 0 as percentage please help me in this program user have to enter obtain score and total score

Automata, history of automata

history of automata

Write Your Message!

Name

Email id

Message

Verfication Code

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd