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The instruction cycle (also known as the fetch–decode–execute cycle, or simply the fetch–execute cycle) is the cycle that the central processing unit (CPU) follows from boot-up until the computer has shut down in order to process instructions. It is composed of three main stages: the fetch stage, the decode stage, and the execute stage.
Companies must also account for changes that occur externally, such as changes by customers or business partners that could materially impact their own financial positioning (e.g. key customer/supplier bankruptcy and default). To comply with Section 409, organizations should assess their technological capabilities in the following categories:
Execution in computer and software engineering is the process by which a computer or virtual machine interprets and acts on the instructions of a computer program.Each instruction of a program is a description of a particular action which must be carried out, in order for a specific problem to be solved.
Changes of state are implicit, managed by the program runtime, so that a subroutine has visibility of the changes of state made by other parts of the program, known as side effects. In declarative programming languages, the program describes the desired results and doesn't specify changes to the state directly.
In computer engineering, instruction pipelining is a technique for implementing instruction-level parallelism within a single processor. Pipelining attempts to keep every part of the processor busy with some instruction by dividing incoming instructions into a series of sequential steps (the eponymous "pipeline") performed by different processor units with different parts of instructions ...
While a computer program is a passive collection of instructions typically stored in a file on disk, a process is the execution of those instructions after being loaded from the disk into memory. Several processes may be associated with the same program; for example, opening up several instances of the same program often results in more than ...
In computing, logging is the act of keeping a log of events that occur in a computer system, such as problems, errors or just information on current operations. These events may occur in the operating system or in other software.
Software evolution can be fully manual (based on changes by software engineers), partially automated (e.g. using refactoring tools) or fully automated. Software evolution has been greatly impacted by the Internet: the rapid growth of World Wide Web and Internet Resources make it easier for users and engineers to find related information.