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

Third generation of computers, THE THIRD GENERATION (1966-1975) ...

THE THIRD GENERATION (1966-1975) The introduction of IBM-360 series of computers in 1965 marked the beginning of this generation. The transistors were replaced by solid

Explain CPU scheduling and its objectives?, Definition of CPU scheduling: T...

Definition of CPU scheduling: The assignment of physical processors to processes allows processors to complete work. The process of determining that for which process which pro

Assembly, can you help me to do my assembly program homework

can you help me to do my assembly program homework

Innovation, role of an system analyst as an innovator

role of an system analyst as an innovator

C program, #write a c program to print ant and rod #

#write a c program to print ant and rod #

Explian, explain anatomy of digital coputer

explain anatomy of digital coputer

Database management, Suppose you are designing a database for an art museum...

Suppose you are designing a database for an art museum that owns a large volume of works of art. Each work of art is described by a unique item code, a title, a type, and a size. T

Explain actual process of ftp applications, Question 1 How do you inse...

Question 1 How do you insert Image source code in HTML Question 2 Explain actual process of FTP applications Question 3 Write a short note on TIFF BMP

Mis, #questionexplain strategic mis categories in detail with illustration....

#questionexplain strategic mis categories in detail with illustration..

Embedded system, what question can be asked for embedded system

what question can be asked for embedded system

Write Your Message!

Captcha
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!

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