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Execution within computer and software engineering is the process by which a computer or virtual computer carries out the instructions of a computer program. A term start is utilized most synonymously.

The related meaning of each "to run" & "to execute" refers to the action of the user starting the program, when around "Please run the ... application."

Context of Execution
A context where execution happen is important. Super pack computer softwcome are executed in the bare machine. Computer program commonly contain inexpressed & explicit assumptions all about resources available at a instance of execution. Virtually all softwcome download are executed using a trend lines of an operating system and run-time libraries specific to the source language that provide crucial services non supplied directly per computer itself. This supportive environment, e.g., ordinarily decouples the program from either straight manipulation of the peripheral device, providing extra general, abstract services instead.

Interpreter
The rules that executes the program is known as an interpreter of the program. Loosely speaking, an interpreter actually does what a program says to clean. This is around counterpoint to the language translator that converts the program from either a single language to an additional. A usual language translators come compilers. Translators usually convert their source language to the language that is simpler & sooner to execute. the ideal is that the ratio of executions to translations of a program is big, so providing a big gain for translation versus straight interpretation of the source language.

Translators normally develop an abstract symptom that is non totally ready to execute. A conversion of the translator object code into the final form that is executed is ofttimes performed per operating formulas upright prior to execution of the program begins. This normally involves modifying a code to attach it to rattling devices addresses & establishing location links between a program & trend lines code within libraries. Around a few subjects this code is farther transformed a foremost instance these are executed, e.g. by simply-around-instance compilers, into a supplementary effective form that persists for a bit of time period, commonly at least when you took the todays execution begin.

Micro-execution
A machine language that is documented as the programming target for virtually tons computers is, inside virtually all legal actions in todays world except mayhap for super elementary processors, actually interpreted by a microprogram running inside a processor, on the rattling devices. There keep around been many tries to project RISC computers that avoid micro-execution, however a distinction between complex & reduced instruction sets has tended to blur on top instance. A independent distinction between this rather micro-interpreter & an acknowledged package interpreter is that a firmware normally doesn't vary. It used to be that firmware ordinarily changed just slowly. A execution devices inside todays world is every now and again implemented in field-reprogrammable logic, & execution schemes that modify a devices dynamically to match a todays requirements survive and could get progressively most common.

MSWLogo
An advanced multimedia Windows version of UCB Logo, available in many different languages.

Logo++
Simplified syntax Logo, very easy, within a few minutes one can start programming and drawing complex graphics with few lines of code; runs in graphical environment (Linux X11, Windows), has own editor; coded in C++. [Open Source, GPL]

Berkeley Logo
Where you can find information on books about Logo, as well as the free UCB Logo system.

Terrapin Software
Terrapin Logo for home and schools. Now with support for Lego's Mindstorm RCX Robotic kit. Also makes Crystal Rain Forest.

Logo Computer Systems, Inc.
MIcroWorlds, MicroWorlds Pro, My Make Believe Castle and other educational software titles. Makes the process of creating school projects a rich learning experience, fosters development of problem-solving strategies, critical thinking skills, creativity.

TinyLogo
Programming language and program execution environment for 3Com Palm systems; very friendly to beginning programmers or users who want a simple idea of what programming is about. Has with Turtle Graphics.

TinyLogo
Another site for downloading this 3Com Palm Logo.

Object Oriented Programming extensions
For MSWLogo or UCBLogo.

ELICA (ELICA, Educational Logo Interface for Creative Activities)
A Logo based system for Windows. Download the Logo system and many related interactive projects.

Yellow Brick Logo
MIT Yellow Brick Logo (MIT-YBL) is an implementation of the Logo language for the LEGO RCX Brick. Includes: An MIT-written replacement for the firmware operating system that is loaded into the RCX Brick, and Software that runs on a Macintosh or Windows 95/98 computer to implement a text-based Logo interface to the RCX Brick.


Computers: Programming: Languages: Lisp: Compilers and Interpreters
Computers: Programming: Languages: Lisp: Scheme: Implementations





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