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

Utilities, discuss a goal utility

discuss a goal utility

Program and programming language, Program and Programming Language : ...

Program and Programming Language : A Program is defined as a collection of statements/ instructions that enable the computer to solve a problem. The process of writing a prog

Data type, Data Type: Data Type: Anything that is processed by a comp...

Data Type: Data Type: Anything that is processed by a computer is called data. There are different types of data that can be given to the computer for processing. A data typ

Display the item in red colour on a web page, QUESTION (a) Give the app...

QUESTION (a) Give the appropriate syntax to implement a Client-Side Image Map, specifying all possible attributes where required (b) List the benefits of using Cascading Sty

We will compare the performance of a vector processor, In this problem we w...

In this problem we will compare the performance of a vector processor with a system that contains a scalar processor and a GPU-based coprocessor. In the hybrid system, the host pr

Network engenering, What role would you assign to each of the four workstat...

What role would you assign to each of the four workstation and any other equipment

Subroutine and functions, Subroutine and Functions: In a program, it ...

Subroutine and Functions: In a program, it is often necessary to repeat a statement or group of statements at several points to accomplish a particular task. Repeating the sa

Power point, how to start ms power point

how to start ms power point

Memory access, Memory access: The use of semi-conductor memory elements...

Memory access: The use of semi-conductor memory elements (bistables) has been made possible by the use of large scale integrated circuits (LSI) which provide reliability, ease

Operating systems, Operating Systems: The operating system is the soft...

Operating Systems: The operating system is the software that mediates between the applications programs and a level of instructions nearer to the machine's operations. In othe

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