Computer programInstructions a computer can executeSource code for a computer program written in the JavaScript language. It demonstrates the appendChild() method. The method adds a new child node to an existing parent node. It is commonly used to dynamically modify the structure of an HTML document.A computer program is a sequence or set of instructions in a programming language for a computer to execute.SoftwareSoftware (SW) consists of computer programs that instruct the execution of a computer. Software also includes design documents and specifications. The history of software is closely tied to the development of digital computers in the mid-20th century. Early programs were written in the machine language specific to the hardware.
Interpreter (computing)In computing, an interpreter is software that executessource code without first compiling it to machine code. An interpreted runtime environment differs from one that processes CPU-native executable code which requires translating source code before executing it. An interpreter may translate the source code to an intermediate format, such as bytecode.
Instruction cycleThe 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. In simpler CPUs, the instruction cycle is executed sequentially, each instruction being processed before the next one is started.
Machine codeIn computing, machine code is dataencoded and structured to control a computer's central processing unit (CPU) via its programmable interface. A computer program consists primarily of sequences of machine-code instructions. Machine code is classified as native with respect to its host CPU since it is the language that the CPU interprets directly.
ComputerProgrammable machine that processes dataComputers and computing devices from different eras—left to right, top to bottom: Early vacuum-tube computer (ENIAC)Mainframe computer (IBM System/360)Smartphone (LYF Water 2)Desktop computer (IBM ThinkCentre S50 with monitor)Supercomputer (IBM Summit)A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations (computation).
Control unitIn computer architecture, the control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. A CU typically uses a binary decoder to convert coded instructions into timing and control signals that direct the operation of the other units (memory, arithmetic logic unit and input and output devices, etc.). Most computer resources are managed by the CU. It directs the flow of data between the CPU and the other devices.
Batch processingIn computing, batch processing is the running of a softwarejob in an automated and unattended way. A user schedules a job to run and then waits for a processing system to run it. Typically, a job is scheduled to run at a configured time of day or when an event occurs or when computer resources are available.
ComputingComputing is any goal-oriented activity that requires, benefits from, or creates computing machinery. It includes the study and experimentation of algorithmic processes, and the development of both hardware and software. Computing encompasses scientific, engineering, mathematical, technological, and social aspects.
User (computing)A user is a person who uses a computer or networkservice. A user typically has a user account and is recognized by the system through a username. Some software products provide services to other systems and have no direct end users. End userEnd users are the ultimate human users (also referred to as operators) of a software product. The end user stands in contrast to users who support or maintain the product such as sysops, database administrators and computer technicians.
Source CodeSource Code is a 2011 science fictionaction thriller film directed by Duncan Jones and written by Ben Ripley. It stars Jake Gyllenhaal as a US Army officer who is sent into an eight-minute virtual re-creation of a real-life train explosion, and tasked with determining the identity of the terrorist who bombed it. Michelle Monaghan, Vera Farmiga, and Jeffrey Wright play supporting roles.Semantics (programming languages)Semantics ofprogramming languagesLanguageLinguisticsIn programming language theory, semantics is the rigorous mathematical logic study of the meaning of programming languages. Semantics assigns computational meaning to valid strings in a programming language syntax. It is closely related to, and often crosses over with, the semantics of mathematical proofs. Semantics describes the processes a computer follows when executing a program in that specific language.*As an Amazon Associate I earn from qualifying purchases.