Gourt > Computers > Programming > Languages > Smalltalk > Software (1)
Computer software (or simply software) is the programs and procedures that enable a computer to perform a specific task, as opposed to the physical components of the system (hardware). This includes application software such as a word processor, which enables a user to perform a task, and system software such as an operating system, which enables other software to run properly, by interfacing with hardware and with other software.
The term "software" was first used in this sense by John W. Tukey in 1957. In computer science and software engineering, computer software is all information processed by computer systems, programs and data. The concept of reading different sequences of instructions into the memory of a device to control computations was invented by Charles Babbage as part of his difference engine. The theory that is the basis for most modern software was first proposed by Alan Turing in his 1935 essay Computable numbers with an application to the Entscheidungsproblem. Hally, Mike (2005:79). Electronic brains/Stories from the dawn of the computer age. British Broadcasting Corporation and Granta Books, London. ISBN 1-86-207663-4.
Relationship to hardware
Computer software is so called in contrast to computer hardware, which encompasses the physical interconnections and devices required to store and execute (or run) the software. In computers, software is loaded into RAM and executed in the central processing unit. At the lowest level, software consists of a machine language specific to an individual processor. A machine language consists of groups of binary values signifying processor instructions (object code), which change the state of the computer from its preceding state. Software is an ordered sequence of instructions for changing the state of the computer hardware in a particular sequence. It is generally written in high-level programming languages that are easier and more efficient for humans to use (closer to natural language) than machine language. High-level languages are compiled or interpreted into machine language object code. Software may also be written in an assembly language, essentially, a mnemonic representation of a machine language using a natural language alphabet. Assembly language must be assembled into object code via an assembler. More on [ Computer software ]
Development Tools :: Programming
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mylix (Myriam Romero Godoy) Mon, 14 Dec 2009 12:56:48 -0000
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AIDA/Web - Open Source, Smalltalk Web application server: web server and framework for dynamic Internet/Intranet applications, in pure VisualWorks.
CodeCrawler - Language independent (Ada, C++, COBOL, Java, Smalltalk) reverse engineering tool, combines metrics, software visualization; based on Moose implementation of FAMIX metamodel, coded in VisualWorks Smalltalk. [free non-commercial use]
Meta Description: [ Software Composition Group, IAM, University of Berne ]
DoME: Domain Modeling Environment - Honeywell Smalltalk program. Extensible system for graphically developing, analyzing and transforming models of systems and software. Fully functional, tested, documented, and free, distributed under GNU General Public licenses. Native Smalltalk: VisualWorks.
500
Eiffel-like Assertions and Private Methods in Smalltalk - Assertions are considered one of the more useful and advanced aspects of Eiffel, and they are simple to implement.
Jun - Easy to use, VisualWorks Smalltalk-based, OO, high level, application framework and 3D graphics library, supports geometry and topology shape manipulation. With references. [Open Source, GPL]
Jun for Smalltalk - 3D Graphics Library with topology and geometry, OpenGL graphics layer for Smalltalk, coded in VisualWorks. [Open Source, GPL]
Meta Description: [ Jun for Smalltalk ]
Mission Software, Inc. - Smalltalk/JVM, Smalltalk compiler for the Java virtual machine, lets Smalltalk run on any JVM, makes 100% Java class files. Business OS, easy, scalable, distributed application development with VisualAge Smalltalk.
Meta Description: [ Welcome to Mission Software- Home of Smalltalk/JVM, a Smalltalk compiler for the java
virtual machine, and Business OS, distributed application development with VisualAge Smalltalk made easy.Let Mission Software
fill all your smalltalk and java software needs. ]
Seaside - Framework to make sophisticated, highly interactive, dynamic web applications in Smalltalk quickly, reusably, maintainably, via abstractions layered over HTTP and HTML. Descriptions, downloads, tutorials, video, documents.
500
SmallInterfaces - Smalltalk extension, introduced the notion of interface in Smalltalk, first developed by Benny Sadeh. Allows limiting variable types.
TOPLink - Bridges the gap between object and relational technology. Available for Smalltalk, Java, and GemStone. A potent tool when you must access relational data with object-oriented applications.
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