What is "sharepoint"

SharePoint is a web application that integrates with Microsoft Office. Launched in 2001, SharePoint is primarily sold as a document management and storage system, but the product is highly configurable and usage varies substantially between organizations.

There are various different editions of SharePoint which have different functions:

SharePoint Online is typically bundled in Microsoft Office 365 subscriptions, but can be purchased outright. It is limited to a core set of collaboration, file hosting, and document and content management scenarios, and is updated on a frequent basis.

SharePoint Server is provided to organizations that seek greater control over SharePoint's behavior or design. This product is installed on the customer's IT infrastructure. It receives less frequent updates, but has access to a wider set of features and customization capabilities. There are three versions of SharePoint Server: Foundation (free), Standard, and Enterprise, although the free version may have been discontinued in 2016. These servers may be provisioned as normal virtual/cloud servers, or as hosted services.

Microsoft states that SharePoint has 160 million users across 75,000 customer organizations.