Running Software Instance
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A Running Software Instance is a software instance that is an executing program (operating within a digital computing system and consuming running software system resources).
- AKA: Program Instance, Software Process, Executing Software.
- Context:
- It can typically maintain Running Software Program State through running software memory structures that preserve running software execution context.
- It can typically consume Running Software System Resources via running software resource allocation mechanisms that manage running software resource utilization.
- It can typically execute Running Software Program Instructions using running software processor time allocated by the running software scheduler.
- It can typically communicate with Running Software System Components through running software system interfaces that enable running software functionality access.
- It can typically track Running Software Execution Progress through running software process control mechanisms that monitor running software task completion.
- It can typically handle Running Software Input/Output Operations via running software I/O subsystems that manage running software data flow.
- ...
- It can often interact with Running Software Operating System through running software system calls that request running software system services.
- It can often generate Running Software Program Output via running software execution results that deliver running software processed data.
- It can often handle Running Software Program Errors through running software error handling mechanisms that maintain running software stability.
- It can often implement Running Software Security Measures via running software access controls that protect running software sensitive data.
- It can often manage Running Software Resource Contention through running software synchronization primitives that coordinate running software shared resource access.
- It can often log Running Software Execution Events through running software logging mechanisms that create running software audit trails.
- ...
- It can range from being a Simple Running Software Instance to being a Complex Running Software Instance, depending on its running software program complexity.
- It can range from being a Single-threaded Running Software Instance to being a Multi-threaded Running Software Instance, depending on its running software execution model.
- It can range from being a Foreground Running Software Instance to being a Background Running Software Instance, depending on its running software interaction mode.
- It can range from being a Short-lived Running Software Instance to being a Long-running Running Software Instance, depending on its running software execution duration.
- It can range from being a Static Running Software Instance to being a Dynamic Running Software Instance, depending on its running software resource usage pattern.
- It can range from being a Low-priority Running Software Instance to being a High-priority Running Software Instance, depending on its running software scheduling priority.
- It can range from being a Sequential Running Software Instance to being a Concurrent Running Software Instance, depending on its running software execution pattern.
- It can range from being a User-space Running Software Instance to being a Kernel-mode Running Software Instance, depending on its running software privilege level.
- ...
- It can contain Running Software Data Structures that organize running software program data.
- It can consume Running Software Computer Memory through running software memory allocation operations.
- It can consume Running Software Computing Processing Resources through running software CPU utilization.
- It can produce a Running Software Program Memory Dump or a Running Software Program Trace for running software diagnostic purposes.
- It can interact with other Running Software Instances through running software inter-process communication.
- It can be managed by a Running Software Process Manager that controls its running software lifecycle.
- It can access Running Software Storage Resources via running software file system interfaces.
- It can utilize Running Software Network Resources through running software network stack operations.
- It can modify Running Software System Environment through running software environment variables and running software configuration settings.
- ...
- Examples:
- Running Software Application Instances, such as:
- Running Software Browser Instances handling running software web navigation, demonstrating Running Software Program State maintenance.
- Running Software Word Processor Instances managing running software document editing, showcasing Running Software Input/Output Operation handling.
- Running Software Media Player Instances controlling running software media playback, illustrating Running Software Program Instruction execution.
- Running Software Database Client Instances facilitating running software data management, exhibiting Running Software System Resource consumption.
- Running Software Game Instances rendering running software interactive environments, demonstrating Running Software Computing Processing Resource utilization.
- Running Software System Service Instances, such as:
- Running Software DBMS Instances managing running software database operations, showcasing Running Software Data Structure containment.
- Running Software Web Server Instances serving running software web content, demonstrating Running Software Network Resource utilization.
- Running Software Print Server Instances handling running software print jobs, illustrating Running Software Operating System interaction.
- Running Software Authentication Service Instances verifying running software user credentials, exemplifying Running Software Security Measure implementation.
- Running Software Message Queue Instances coordinating running software asynchronous communication, demonstrating Running Software Resource Contention management.
- Running Software Background Process Instances, such as:
- Running Software System Monitor Instances tracking running software system health, illustrating Running Software Execution Event logging.
- Running Software Backup Service Instances managing running software data backup, demonstrating Running Software Storage Resource access.
- Running Software Update Service Instances handling running software system updates, showcasing Running Software System Environment modification.
- Running Software Indexing Service Instances cataloging running software content, exhibiting Running Software Program Output generation.
- Running Software Scheduled Task Instances performing running software automated operations, demonstrating Background Running Software Instance characteristics.
- Running Software Specialized Process Instances, such as:
- Running Software Real-time Process Instances controlling running software time-sensitive operations, illustrating High-priority Running Software Instance characteristics.
- Running Software Batch Process Instances processing running software large-scale data, demonstrating Sequential Running Software Instance behavior.
- Running Software Driver Instances interfacing with running software hardware devices, showcasing Kernel-mode Running Software Instance privilege.
- Running Software Distributed Process Instances coordinating across running software multiple systems, exhibiting Complex Running Software Instance complexity.
- Running Software Container Instances, such as:
- Running Software Docker Container Instances isolating running software application environments, demonstrating Dynamic Running Software Instance resource patterns.
- Running Software Kubernetes Pod Instances orchestrating running software microservices, showcasing Running Software Execution Progress tracking.
- Running Software Virtual Machine Instances, such as:
- Running Software Hypervisor Instances managing running software virtual environments, illustrating Running Software System Component communication.
- Running Software JVM Instances executing running software Java bytecode, demonstrating Multi-threaded Running Software Instance capabilities.
- ...
- Running Software Application Instances, such as:
- Counter-Example(s):
- A Running Software Program Process Thread, which is a component subunit of a running software instance rather than a complete running software instance itself, lacking independent running software resource allocation and running software state management.
- A Running Software Program Data Object, which is a passive running software data structure that does not independently execute running software program instructions or maintain its own running software execution context.
- A Static Software Program File, which is a stored representation of software code that is not currently being executed and lacks active running software system resource consumption or running software program state.
- An Unloaded Software Program, which has not been instantiated into system memory and therefore does not have an associated running software execution context or running software resource allocation.
- A Software Program Image, which is a template for creating a running software instance but is not itself actively executing or consuming running software system resources.
- A Software Program Binary, which contains executable code but is not currently in an executing state and does not maintain running software program state.
- A Software Installation Package, which contains the necessary components to create a software application but is not an actively executing program.
- See: Running Software Process, Running Software Thread, Running Software Program State, Running Software Memory Management, Running Software Process Management, Running Software Program State, Running Software System Resource, Running Software Operating System, Running Software Process Scheduler, Running Software Memory Allocation, Running Software Execution Context, Running Software Resource Virtualization.
References
2015
- (Economist, 2015) ⇒ The Economist. (2015). “What is Code?.” In: The Economist, Sep 8th 2015 Journal.
- QUOTE: From lifts to cars to airliners to smartphones, modern civilisation is powered by software, the digital instructions that allow computers, and the devices they control, to perform calculations and respond to their surroundings. How did that software get there? Someone had to write it. But code, the sequences of symbols painstakingly created by programmers, is not quite the same as software, the sequences of instructions that computers execute. So what exactly is it? Coding, or programming, is a way of writing instructions for computers that bridges the gap between how humans like to express themselves and how computers actually work.
2013
- http://en.wikipedia.org/wiki/Process_%28computing%29
- In computing, a process is an instance of a computer program or Application that is being executed. It contains the program code and its current activity. Depending on the operating system (OS), a process may be made up of multiple threads of execution that execute instructions concurrently.[1][2]
A computer program is a passive collection of instructions; a process is the actual execution of those instructions. Several processes may be associated with the same program; for example, opening up several instances of the same program often means more than one process is being executed.
Multitasking is a method to allow multiple processes to share processors (CPUs) and other system resources. Each CPU executes a single task at a time. However, multitasking allows each processor to switch between tasks that are being executed without having to wait for each task to finish. Depending on the operating system implementation, switches could be performed when tasks perform input/output operations, when a task indicates that it can be switched, or on hardware interrupts.
A common form of multitasking is time-sharing. Time-sharing is a method to allow fast response for interactive user applications. In time-sharing systems, context switches are performed rapidly. This makes it seem like multiple processes are being executed simultaneously on the same processor. The execution of multiple processes seemingly simultaneously is called concurrency.
For security and reliability reasons most modern operating systems prevent direct communication between independent processes, providing strictly mediated and controlled inter-process communication functionality.
- In computing, a process is an instance of a computer program or Application that is being executed. It contains the program code and its current activity. Depending on the operating system (OS), a process may be made up of multiple threads of execution that execute instructions concurrently.[1][2]
- ↑ SILBERSCHATZ, Abraham; CAGNE, Greg, GALVIN, Peter Baer (2004). "Chapter 4 - Processes". Operating system concepts with Java (Sixth Edition ed.). John Wiley & Sons. ISBN 0-471-48905-0.
- ↑ Vahalia, Uresh (1996). "2 - The Process and the Kernel". UNIX Internals - The New Frontiers. Prentice-Hall Inc.. ISBN 0-13-101908-2.