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  2. Software - Wikipedia

    en.wikipedia.org/wiki/Software

    As software ages, it becomes known as legacy software and can remain in use for decades, even if there is no one left who knows how to fix it. [35] Over the lifetime of the product, software maintenance is estimated to comprise 75 percent or more of the total development cost.

  3. List of the largest software companies - Wikipedia

    en.wikipedia.org/wiki/List_of_the_largest...

    Many lists exist that provide an overview of large software companies, often called "independent software vendors" ("ISVs"), in the world.The lists differ by methodology of composition and consequently show substantial differences in both the listed companies and the ranking of those companies.

  4. Information technology - Wikipedia

    en.wikipedia.org/wiki/Information_technology

    Information technology (IT) is a set of related fields within information and communications technology (ICT), that encompass computer systems, software, programming languages, data and information processing, and storage. [1] Information technology is an application of computer science and computer engineering.

  5. List of Fortune 500 computer software and information ...

    en.wikipedia.org/wiki/List_of_Fortune_500...

    This is a list of software and information technology companies that are in the Fortune 500 list of the largest U.S. companies by revenue in the year of 2024. Company Type

  6. List of largest technology companies by revenue - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_technology...

    The list includes companies whose primary business activities are associated with the technology industry, which includes computer hardware, software, electronics, semiconductors, telecom equipment, e-commerce and computer services. Note: This list shows only companies with annual revenues exceeding US$50 billion.

  7. Category:Lists of software - Wikipedia

    en.wikipedia.org/wiki/Category:Lists_of_software

    List of Mac software; List of Macintosh software published by Microsoft; List of Classic Mac OS software; List of mailing list software; List of manual image annotation tools; List of open-source software for mathematics; List of Microsoft software; List of smart TV platforms; List of Mobile Device Management software; List of model checking tools

  8. Open-source software - Wikipedia

    en.wikipedia.org/wiki/Open-source_software

    This is an accepted version of this page This is the latest accepted revision, reviewed on 10 February 2025. Software licensed to ensure source code usage rights Open-source software shares similarities with free software and is part of the broader term free and open-source software. For broader coverage of this topic, see open-source-software movement. A screenshot of Manjaro Linux running ...

  9. Software industry - Wikipedia

    en.wikipedia.org/wiki/Software_industry

    Software industry business models include SaaS (subscription-based), PaaS (platform services), IaaS (infrastructure services), and freemium (free with premium features). Others are perpetual licenses (one-time fee), ad-supported (free with ads), open source (free with paid support), pay-per-use (usage-based), and consulting/customization services.