what is the difference between memory mapped io and io mapped io
Pls explain the difference between memory mapped IO and IO mapped IO ...
operating-system
64 bit Operating System ?
Hi, What we are getting if someone says "my machine is 64-bit computer" . What is the difference between 64-bit computer(I mean the CPU architecture) and operating system(WINDOWS 64 bit OS). Please explain me how these terms are related with processor architecture Thx ...
What do the terms platform and framework refer to?
Hi, I ran into this question many times ago and have seen the terms again and didn't know their real concept in computer engineering. What do platform and framework refer to? I see many terms like platform-independent and development platforms, and also same for frameworks, but i can't quietly understand them. Do they refer to librarie...
space required in laptop to install linux operating system
my laptop consists of 80GB harddisk. I want to insatll linux operating in my laptop so can anyone tell me how much space required to install linux operating system. ...
Which Linux distribution does Facebook, Twitter, and Reddit use?
Most probably customize the hell out of the base distributions, but I was wondering which one is more popular among most startups...RHEL, ubuntu, fedora, centos..etc ? ...
Is the multi-threading model the real reason why OOP is falling and fP rising?
I been looking around at the problem of the multi-core chip stuff. would I be correct in assuming that the real problem with developing for mutlicore chips is nothing to do with the actual techniques of multi-tasking (isolated memory, task based etc), but more to do with the implementation of the threading model in the OS? I have been i...
Operating sytem detection for CSS hacks (aka need a "PC only" CSS hack)
I don't like Microsoft's font rendering. I've created a site for a client and the last unticked box on my debugging list is the biggest. (it's not 'live' yet btw so please ignore any other bugs - http://baked-beans.tv/bb) I'm using font-family to import a non standard web font. It renders fine on Mac, but it looks like sick old man on ...
How to test bootloader
Hi I have a hello world bootloader code in assembly written (I'm sure I coded it right). I have the .bin file with me and .exe also. I want to test it now with a USB, how do I do it? Everything I googled out and found on the topic pretty much didn't work out. I have tried the way with "Disk Explorer NTFS 3.66". I have also tried the...
Question about custom windows authentication package
I'm building a custom authentication subpackage for MSV1_0 for Windows 7. I've used the msvsubauth sample in from the Windows SDK and I have 2 questions regarding some problems I'm facing with that: When I'm trying just to make sure that the routine get's invoked and set the Auth0 property in the registry to my package and add a simple...
How to get the corresponding WPF theme with the current Windows theme?
Let's say in my application, there are two regions: 1) used customized theme, and 2) used the system theme (the theme selected by the user in his Windows OS). Region 1 uses the customized themes whilst Region 2 uses the default themes. The official default WPF themes can be downloaded here. What I need is to know the current theme that ...
temp folder is created as temp file
hi. guys i have experienced a weird thing today. i am installing tomcat5 , and it stopped in the middle of progress bar. and i use process explorer to check the processes. i found a process with command line : C:\TEMP\nse305.tmp\ns306.tmp "C:\Program Files\Apache Software Foundation\Tomcat 5.0\bin\tomcat5.exe" //IS//Tomcat5 ..... the w...
Implementing a network pager as an alternative to disk paging. Suggestions?
Hi guys, I am working on a project where I am required to create a page fault handler that uses memory from a different computer connected via a network as opposed to redirecting page faults to the local hard disk. Our idea parts from the assumption that, with the speed of the networks nowadays, it would be advantageous to use remote mem...
Os Check And prompt proper if
Can python see which windows i use e.x. windows 7 windows xp windows vista and if windows vista print you use windows vista, or execute other command ...
Prefered OS for server - Windows 2008 x64 or Linux CentOs, Fedora, Ubuntu
I want to know which want do you prefer for a Dedicated server... Yeah in 2 months I'll get a dedicated server but I don't know which OS to choose. I use exec command from PHP to run .exe files... (like image converter, video converter) but I'm sure I can find that for Linux too... I don't know Linux very well, but I use Windows every d...
type of output code from compiler
when a compiler compile a high-level language into the target language that are executable , what form is the target language in ? Is it a lower-level language like machine code ? Or the compiler just translate it to the OS's functions from the OS's API and the OS do all the work under the hood? ...
Why are malloc() and printf() said as non-reentrant ?
In UNIX systems we know malloc() is a non-reentrant function (system call). Why is that? Similarly, printf() also is said to be non-reentrant; why? I know the definition of re-entrancy, but I wanted to know why it applies to these functions. What prevents them being guaranteed reentrant? ...
relationship between programming language and OS APIs
there are methods in program language in c++ like cout<<"hello world" . when compiled does it invoke a system call to perform the actual work OR is it compiled directly into binary code and get executed by the kernal ? if it use the OS API , different platforms using different OS API, how can the language be the same? ...
What does a C++ program require to run?
This question has been bothering me for a while now. Let's consider the two following programs: #incude <iostream> int main() { std::cout << "Hello, World!"; } and int main() { int x = 5; int y = x*x; } Windows: The first example, naturally, requires some system .dll's for the console. I understand that. What about the se...
Custom Linux GUI
Hi, I'm interested in creating a GUI for a Linux operating system. What I'm trying to do, is, a program will be the GUI -- the program will have be quite basic. I think this question will go into Embedded Linux development, but I'm not sure where to start neither the amount of tutorials or help available. Thank you for any help. ...
Accurately determine the type of OS PHP is running on
Title says it all. I need to determine the type of OS the PHP server is running on. By type, I mean strings like "windows" or "linux", not "wince", "winnt" etc. So far, I have to leads: PHP_OS and uname(), the later being more reliable than the earlier (PHP_OS says what OS PHP was built on - according to documentation). ...