This group of client software, server software, and services used to be called Microsoft Office or just "Office." It was made by Microsoft. Bill Gates made the first announcement at COMDEX in Las Vegas on August 1, 1988. The first version of Office came with Microsoft Word, Microsoft Excel, and Microsoft PowerPoint. It was first sold as an office suite (bundled collection of productivity apps).
Office programs have become much more integrated over time, thanks to features like a shared spell checker, Object Linking and Embedding data integration, and the Visual Basic for Apps scripting language. Microsoft also promotes Office as a platform for making line-of-business applications under the name "Office Business Applications."
It has a word processor (Word), spreadsheet and presentation software (Excel and PowerPoint), email software (Outlook), a database management system (Access), and a desktop publishing package (Publisher).
There are different versions of Office for different types of users and computing environments. The first and most common version is the desktop version, which works on PCs with the Windows and macOS operating systems. Microsoft also updates its apps for iOS and Android mobile phones. Office on the Web is a version of the program that runs on a web browser.
Microsoft has made Office 365 the main way to buy Microsoft Office since Office 2013. With Office 365, users can subscribe to the software and other services and get feature updates for as long as they are subscribed. This includes new features and integration with cloud computing, which aren't always available in "on-premises" versions of Office sold under traditional license terms.
Office 365 income surpassed traditional license sales in 2017. Microsoft also changed the names of most of their regular Office 365 editions to "Microsoft 365" to draw attention to the new features and services that aren't part of the core Microsoft Office suite.
Microsoft said in October 2022 that by January 2023, the Microsoft Office brand would be replaced by "Microsoft 365." The term will still be used for product lines from the past.