Kqueue & Operating system - Unionpedia, the concept map

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Difference between Kqueue and Operating system

Kqueue vs. Operating system

Kqueue is a scalable event notification interface introduced in FreeBSD 4.1 in July 2000, also supported in NetBSD, OpenBSD, DragonFly BSD, and macOS. An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs.

FreeBSD

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD).

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Kernel (operating system)

The kernel is a computer program at the core of a computer's operating system and generally has complete control over everything in the system.

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Linux

Linux is both an open-source Unix-like kernel and a generic name for a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds.

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MacOS

macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001.

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Microsoft Windows

Microsoft Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft.

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NetBSD

NetBSD is a free and open-source Unix-like operating system based on the Berkeley Software Distribution (BSD).

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OpenBSD

OpenBSD is a security-focused, free and open-source, Unix-like operating system based on the Berkeley Software Distribution (BSD).

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Oracle Solaris

Solaris is a proprietary Unix operating system originally developed by Sun Microsystems.

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Polling (computer science)

Polling, or interrogation, refers to actively sampling the status of an external device by a client program as a synchronous activity.

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Signal (IPC)

Signals are standardized messages sent to a running program to trigger specific behavior, such as quitting or error handling.

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System call

In computing, a system call (commonly abbreviated to syscall) is the programmatic way in which a computer program requests a service from the operating system on which it is executed.

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User space and kernel space

A modern computer operating system usually uses virtual memory to provide separate address spaces, or separate regions of a single address space, called user space and kernel space.

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