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

Logic gates:truth table, truth table:x^yvz

truth table:x^yvz

Historical background of computers, Historical Background The br...

Historical Background The brief history of the growth of computers is given below: Abacus: It was the first mechanical device developed approximately 3,000 year

Disk output, Disk output : You will already have decided whether to u...

Disk output : You will already have decided whether to use a hard disk or floppies for storing data. An important point of disk management is to ensure a secure method of kee

Bus structure, which computer architecture use single bus structure??????? ...

which computer architecture use single bus structure??????? tells the name and little bit working

Cellular., explain?

explain?

#, #queswhat computers can do tion..

#queswhat computers can do tion..

Description of Instruction execution, When software is installed onto a mod...

When software is installed onto a modern day personal computer (most commonly from a CD-ROM, though other media or downloading from the internet is also common), code comprising th

C, board coloring

board coloring

Why is the atm selected as a transport network in 3g, Why is the ATM select...

Why is the ATM selected as a transport network in 3G? Answer: ATM provides efficient support for transmission of voice, data, and video ATM provides QoS guarantee and reliability

Data Mining Assignment (by Weka), Hi there, I''m just asking that do you d...

Hi there, I''m just asking that do you do data mining assignment?

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