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Process identifier

Index Process identifier

In computing, the process identifier testing (normally referred to as the process ID or PID) is a number used by most operating system kernels—such as those of UNIX, macOS and Microsoft Windows—to uniquely identify an active process. [1]

28 relations: Architecture of Windows NT, Computing, Fork (system call), Group identifier, Handle (computing), HP Multi-Programming Executive, HP-UX, Init, Kernel (operating system), Kill (command), Linux, MacOS, Microsoft Developer Network, Microsoft Windows, Music on Console, MySQL, Operating system, Paging, Parent process, Process (computing), Protection ring, System call, System Idle Process, Thread (computing), Unix, Unix-like, User identifier, Wait (system call).

Architecture of Windows NT

The architecture of Windows NT, a line of operating systems produced and sold by Microsoft, is a layered design that consists of two main components, user mode and kernel mode.

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Computing

Computing is any goal-oriented activity requiring, benefiting from, or creating computers.

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Fork (system call)

In computing, particularly in the context of the Unix operating system and its workalikes, fork is an operation whereby a process creates a copy of itself.

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Group identifier

In Unix-like systems, multiple users can be put into groups.

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Handle (computing)

In computer programming, a handle is an abstract reference to a resource.

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HP Multi-Programming Executive

MPE (Multi-Programming Executive) is a discontinued business-oriented mainframe computer real-time operating system made by Hewlett-Packard.

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HP-UX

HP-UX (from "Hewlett Packard Unix") is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on UNIX System V (initially System III) and first released in 1984.

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Init

In Unix-based computer operating systems, init (short for initialization) is the first process started during booting of the computer system.

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Kernel (operating system)

The kernel is a computer program that is the core of a computer's operating system, with complete control over everything in the system.

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Kill (command)

In computing, kill is a command that is used in several popular operating systems to send signals to running processes.

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Linux

Linux is a family of free and open-source software operating systems built around the Linux kernel.

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MacOS

macOS (previously and later) is a series of graphical operating systems developed and marketed by Apple Inc. since 2001.

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Microsoft Developer Network

Microsoft Developer Network (MSDN) is the portion of Microsoft responsible for managing the firm's relationship with developers and testers, such as hardware developers interested in the operating system (OS), and software developers developing on the various OS platforms or using the API or scripting languages of Microsoft's applications.

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Microsoft Windows

Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft.

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Music on Console

Music On Console (MOC) is an ncurses-based console audio player for Linux/UNIX.

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MySQL

MySQL ("My S-Q-L") is an open-source relational database management system (RDBMS).

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Operating system

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

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Paging

In computer operating systems, paging is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory.

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Parent process

In computing, a parent process is a process that has created one or more child processes.

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Process (computing)

In computing, a process is an instance of a computer program that is being executed.

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Protection ring

In computer science, hierarchical protection domains, often called protection rings, are mechanisms to protect data and functionality from faults (by improving fault tolerance) and malicious behaviour (by providing computer security).

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System call

In computing, a system call is the programmatic way in which a computer program requests a service from the kernel of the operating system it is executed on.

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System Idle Process

In Windows NT operating systems, the System Idle Process contains one or more kernel threads which run when no other runnable thread can be scheduled on a CPU.

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Thread (computing)

In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system.

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Unix

Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

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Unix-like

A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification.

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User identifier

Unix-like operating systems identify a user within the kernel by a value called a user identifier, often abbreviated to user ID or UID.

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Wait (system call)

In computer operating systems, a process (or task) may wait on another process to complete its execution.

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Redirects here:

Getpid, PID file, Pidfile, Process ID, Process identifier file.

References

[1] https://en.wikipedia.org/wiki/Process_identifier

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