Organizations use SharePoint to create websites. You can use it as a secure place to store, organize, share, and access information from any device. All you need is a web browser, such as Microsoft Edge, Internet Explorer, Chrome, or Firefox.

"SharePoint" can refer to one or more SharePoint products or technologies, including:

SharePoint Online :

A cloud-based service, hosted by Microsoft, for businesses of all sizes. Instead of installing and deploying SharePoint Server on-premises, any business can subscribe to an Office 365 plan or to the standalone SharePoint Online service. Your employees can create sites to share documents and information with colleagues, partners, and customers. To get started storing your files on your team site.

SharePoint Server :

 Organizations can deploy and manage SharePoint Server on-premises or with an Office 365 Enterprise subscription to take advantage of all the latest features. It includes all the features of SharePoint Foundation. And it offers additional features and capabilities, such as modern site pages, modern web parts and authoring, modern lists and libraries, modern search, integration with PowerApps, Power BI and MS Flow, and SharePoint home page.

SharePoint Foundation :

This is only available for SharePoint Server 2013, SharePoint Foundation was the underlying technology for all SharePoint sites. SharePoint Foundation (formerly Windows SharePoint Services) is free for on-premises deployment. You can use SharePoint Foundation to create many types of sites where you can collaborate on webpages, documents, lists, calendars, and data.

SharePoint Designer 2013  :

 A free program last released in 2013 and 2016. Used to build powerful, workflow-enabled solutions. And used to edit external content types for an external data solution based on Business Connectivity Services.

OneDrive for Business sync :

A desktop program that you can use to sync documents from a team site or OneDrive for Business to your computer for offline use.

Transform business processes :

Accelerate productivity by transforming processes—from simple tasks like notifications and approvals to complex operational workflows. With SharePoint lists and libraries, Microsoft Flow, and PowerApps, you can create rich digital experiences with forms, workflows, and custom apps for every device.

Employee engagement across your organization :

SharePoint sites and pages let you share news, vision, knowledge, and services across the organization. At the SharePoint Virtual Summit this past May, we outlined our vision for SharePoint news to empower all communicators to create and distribute information to the right audiences, across the organization. Today, we showed new ways for you to create beautiful articles faster, including page designs and powerful new web parts, and news links that enable you to share any content, including external articles, as news. We also demonstrated new ways to deliver news using audience targeting, and to publish important articles with visual tags that designate organizational news.