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.

How to get the OS on which PHP is running?

For building a unix/dos specific script I need to know on which kind of operating system I am. How …

php operating-system
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

I can take a guess based on the names, but what specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX? Is …

unix operating-system
difference between dynamic loading and dynamic linking?

Routine is not loaded until it is called. All routines are kept on disk in a re-locatable load format. The …

dynamic linker operating-system loading
Get pc (system) information on windows machine

Is there a way to get the following information by using c# script. PC Name Service Tag CPU type CPU …

c# operating-system system processor
Determining Whether a Directory is Writeable

What would be the best way in Python to determine whether a directory is writeable for the user executing the …

python file permissions directory operating-system
which one should I use: os.sep or os.path.sep?

They are same, but which one should I use? http://docs.python.org/library/os.html: os.sep The character …

python operating-system
Spinlock versus Semaphore

What are the basic differences between a semaphore & spin-lock? When would we use a semaphore over a spin-lock?

c++ c linux unix operating-system
translate virtual address to physical address

The following page table is for a system with 16-bit virtual and physical addresses and with 4,096-byte pages. The reference …

memory memory-management operating-system virtual
Available and used System Memory in Python?

Possible Duplicate: How to get current CPU and RAM usage in Python? How can I get the available and currently …

python operating-system cross-platform
Why is Linux called a monolithic kernel?

I read that Linux is a monolithic kernel. Does monolithic kernel mean compiling and linking the complete kernel code into …

architecture operating-system linux-kernel