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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 ]
Software :: Forex
Software :: Preparation
Computers and Software :: Monetary Union - Euro
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Currency Converter To Go - User-maintained database, providing conversion rates between most international currencies. Also produces wallet-sized conversion tables.
Meta Description: [ Currency conversion between 260+ countries, EURO and track precious metals. Print a pocket size currency conversion sheet to take with you. PocketChange will never be out of date. Get current exchange rates with one click at the Internet Databank. ]
Globex - Currency Exchanger - The Currency Exchanger in Globex supports all currencies (registered version). Exchange rates may be downloaded from the Internet. Also included with Globex is a World Clock, to show you the time in major cities from around the world.
Meta Description: [ Home of Cosmin Software, developer of great software. Titles include: Globex suite (Currency Exchanger, World Clock, Country Info Browser), Tzintar Game, Icon Viewer, Color Detector, etc... ]
HaulTech Computer Services - A purpose designed, multi-user, multi-depot location, multi-currency software package reflecting the requirements of the busy, and demanding traffic office meeting both UK nationwide and International Haulage requirement.
JAZconvert Currency Conversion - Currency conversion service for e-commerce web sites.
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ssCurrConv ASP Component - Currency Converter ASP component that can use multiple currency conversion sites to extract data from. Many options can be configured such as caching, and site settings. [Shareware]
Toccata - Displays a vendor's catalog in any currency and accepts payment in foreign currencies at domestic rates. Includes free real-time rate feed to provide shoppers with the most current prices shown in their home currency.
Wizu - Offers 2xCalc, a shareware calculator and currency converter for more than 160 countries.
Meta Description: [ PalmOS tools for travelers: 2xCalc calc calculator currency converter RPN units interactive map guide of Paris London New York ]
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