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

C programming program, I wrote a program that adds up 5x5 matrices by colum...

I wrote a program that adds up 5x5 matrices by column and row. Now i have to use pointers to rewrite the same code how would do that

Traditional business cycle, what is traditional business cycle

what is traditional business cycle

Artificial intelligence research, Artificial Intelligence research: Art...

Artificial Intelligence research: Artificial Intelligence research may be describe in terms of how the following question has been answered: "How are we going to get a comp

Computers, Computers One of the most important invention in the desig...

Computers One of the most important invention in the design of digital circuits is that of the general- purpose "stored program" computer or device. Computers are a partic

Basic computer structure, Basic computer structure: A computer is an el...

Basic computer structure: A computer is an electronic device, which can accept and process data by carrying out a set of stored instructions in sequence. This sequence of math

Types of operating systems, Operating Systems: An operating system is a se...

Operating Systems: An operating system is a set of programs that manage computer hardware resources and provide common services for application software. There are following kind

Computer Networking Scenario help, The project designs a school computer la...

The project designs a school computer lab with the necessary hardware and software components along with the IP address for different components. The computer lab consists of one I

Networking.., write advantages and disadvantages of private and public netw...

write advantages and disadvantages of private and public network

Arrays, Write an application that stores at least five different department...

Write an application that stores at least five different department and supervisor names in a two-dimensional array. Allow the user to enter a department name (such as “Marketing”)

Data input , Data Input : There are several aspects of data input that nee...

Data Input : There are several aspects of data input that need careful consideration. We shall assume that in a laboratory environment you are mainly concerned with entering data

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