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

Completeness in search - artificial intelligence, Completeness in search - ...

Completeness in search - artificial intelligence: It's also importance trying to calculate the number of solutions to a problem, and the density of those solutions amongst the

System software, SYSTEMS SOFTWARE Systems Software generally is ...

SYSTEMS SOFTWARE Systems Software generally is the software which control the computers and other peripherals. Ex: MS DOS, Windows 95, Unix, NetWare and Windows NT et

Data representations, explain data representation in details

explain data representation in details

Short program to practice assembly language loops, Purpose of Code This...

Purpose of Code This is a short program to practice assembly language loops and if/else statements. You will use various jump commands and the cmp instruction. The progra

Output design, Discuss the factors considered during output design

Discuss the factors considered during output design

Simple Algorithm, How to make an assignment entitled "Decision Making: Fore...

How to make an assignment entitled "Decision Making: Forecasting" and I am required to make a pseudocode and flowchart based on the task.

Data output, Data Output : Processed data is no use to you if you cannot u...

Data Output : Processed data is no use to you if you cannot use it. Once data has been processed, you will either: (1) Send it as a data file to another system, e.g. write a fi

Assembly Language Project, Our instructor gave us a project in making a mec...

Our instructor gave us a project in making a mechanical game or simple device using assembly language, can anyone give me a an example of a project description for our proposal?

Ms word, what is ms words in parts ms words in life?

what is ms words in parts ms words in life?

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

truth table:x^yvz

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