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

Basic computer organisation, Ask question #Minimum a 1000 words accepted#

Ask question #Minimum a 1000 words accepted#

Example of autonomous rational agents, Example of autonomous rational agent...

Example of autonomous rational agents-Artificial intelligence The procedure of waste water treatment After the level of pollutants in waste water is find out, following 5

Introduction to FCB , There are two kinds of FCB, the normal, whose length...

There are two kinds of FCB, the normal, whose length is 37 bytes and the expanded one of 44 bytes. The FCB is created of data given by the programmer and by data which it takes dir

Uniform path cost search-artificial intelligence, Uniform Path Cost Search-...

Uniform Path Cost Search-Artificial intelligence A breadth first search will search the solution with the shortest path length from the first state to the goal state. Though, t

Many to many relationships, Each Many to Many relationship type maps into t...

Each Many to Many relationship type maps into the Table. The primary key of this relevant is the combination of the primary keys of the participating entity types. These are also c

Telecommunication processors, brigde

brigde

Word processing (wp), Word Processing (WP): Word Processing is one of ...

Word Processing (WP): Word Processing is one of the most widespread application software types in use today. Developed as a successor to primitive text editors that were popul

Moderns, Moderns: As it was explained earlier, communications channels...

Moderns: As it was explained earlier, communications channels can operate in either the Analog or digital mode. However, a given circuit can operate only in one mode not both

Database menegment system, list the function of database management system

list the function of database management system

Project on ASP .NET MVC 5, I am looking for a project which is based on ASP...

I am looking for a project which is based on ASP.NET MVC 5.Could you please help me ?

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