Sitecore is CMS (Content Management System) that provide a huge of tools for website development like content editor for marketers and e-commerce tools. You can update your website and can handle your website performance without developer help.
The Sitecore company was founded in 2001 Denmark. Sitecore is the customer experience management company. Sitecore provides the three type of user access Desktop, Content Editor, Page Editor.
Desktop User: This is a superuser. Everything we can do using this user like creation updation and deletion.
Content Editor: Only content editor access. The user cannot access control panel and much more.
Page Editor: User can easily make changes directly on the page. You can update visible items on the page like content, logo, picture etc.