Top "Operating-system" questions

An operating System (OS) is a basic software whose role is to be an abstract layer between software requisitions for resources and the hardware available, manage input/output, memory allocation/deallocation, file systems, among other basic tasks a device (not necessarily a computer) should do.

What is the difference between Full, Para and Hardware assisted virtualization?

I am going through the topic of virtualization, it seems a bit silly to ask this question but i am …

operating-system virtual-machine vmware virtualization
Difference between Counting and Binary Semaphores

What is the difference between Counting and binary semaphore. What I have seen somewhere is that both can control N …

operating-system semaphore
How to get the "friendly" OS Version Name?

I am looking for an elegant way to get the OS version like: "Windows XP Professional Service Pack 1" or "Windows …

c# .net winforms operating-system
How can I tell if SP1 is installed on Windows Server 2008 R2 Standard?

I've been given access to a server and told SP1 was installed on it, but I think maybe it wasn't. …

operating-system version windows-server-2008-r2 servicepacks
Conditional Variable vs Semaphore

When should one use a semaphore and when should one use a conditional variable (CondVar) ?

multithreading operating-system synchronization semaphore mutual-exclusion
Programmatically get the cache line size?

All platforms welcome, please specify the platform for your answer. A similar question: How to programmatically get the CPU cache …

c++ c caching operating-system systems-programming
Check if file is symlink in python

In python, is there a function to check if a given file/directory is a symlink ? For example, for the …

python operating-system
What's the relationship between assembly language and machine language?

Are assembly language and machine language (for the same underlying system) really the same? Are there any differences between these …

assembly architecture operating-system machine-code instruction-set
PHP script - detect whether running under linux or Windows?

I have a PHP script that may be placed on a windows system or a linux system. I need to …

php windows linux operating-system detect
Ctrl + C interrupt event handling in Linux

I am developing an application that uses C++ and compiles using Linux GNU C Compiler. I want to invoke a …

c++ c linux operating-system signals