Instance of a computer program that is being executed by one or many threads.- Process (computing)
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Sequence of instructions in a programming language that a computer can execute or interpret.
If the executable is requested for execution, then the operating system loads it into memory and starts a process.
In computer science, inter-process communication or interprocess communication (IPC) refers specifically to the mechanisms an operating system provides to allow the processes to manage shared data.
Form of resource management applied to computer memory.
This is critical to any advanced computer system where more than a single process might be underway at any time.
Computer program at the core of a computer's operating system and generally has complete control over everything in the system.
When a process requests a service from the kernel, it must invoke a system call, usually through a wrapper function.
Unit of execution or a unit of work.
The term is ambiguous; precise alternative terms include process, light-weight process, thread (for execution), step, request, or query (for work).
Any situation in which no member of some group of entities can proceed because each waits for another member, including itself, to take action, such as sending a message or, more commonly, releasing a lock.
In an operating system, a deadlock occurs when a process or thread enters a waiting state because a requested system resource is held by another waiting process, which in turn is waiting for another resource held by another waiting process.
Parallel computing is a type of computation in which many calculations or processes are carried out simultaneously.
Stack data structure that stores information about the active subroutines of a computer program.
There is usually exactly one call stack associated with a running program (or more accurately, with each task or thread of a process), although additional stacks may be created for signal handling or cooperative multitasking (as with setcontext).
Any goal-oriented activity requiring, benefiting from, or creating computing machinery.
The execution process carries out the instructions in a computer program.
Interrupt is a request for the processor to interrupt currently executing code (when permitted), so that the event can be processed in a timely manner.
In a kernel process, it is often the case that some types of software interrupts are not supposed to happen.