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

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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.

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@mandr_ limpialo o revivelo con una nueva instalada de software
MansaPaloma (Mariela Maguiña) Sat, 07 Nov 2009 04:56:56 -0000
@mandr_ limpialo o revivelo con una nueva instalada de software
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sfmobilejobs (SF Mobile Jobs) Sat, 07 Nov 2009 04:56:39 -0000
Software Engineering Manager - Cypress HCM - San Bruno, CA: developing the core SDK based product, Easy Wi-Fi, in... http://twurl.nl/uwz3vu
I need to create a few multi-disc archives on a Mac. Any software suggestions? I just want to save a folder across multiple DVDs.
TheAtom (Mag) Sat, 07 Nov 2009 04:56:30 -0000
I need to create a few multi-disc archives on a Mac. Any software suggestions? I just want to save a folder across multiple DVDs.
Switchers Guide: Moving Hardware and Software to Mac http://htxt.it/CP0t
npust (Sci/Tech News) Sat, 07 Nov 2009 04:56:09 -0000
Switchers Guide: Moving Hardware and Software to Mac http://htxt.it/CP0t
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Virus Removal Software! Howell mulls what to do if H1N1 virus closes school National News http://www.downloadonlinestore.com/antivirus.htm
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What is the best AntiVirus software for Windows Server 2003 ES? http://is.gd/4PkYu

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