Sharepoint object model 2010 msdn

sharepoint online csom authentication
sharepoint client object model
c# connect to sharepoint onlinesharepoint object model hierarchy
microsoft.sharepoint.client authentication
get sharepoint list items programmatically c# server side
sharepoint csom get list items
sharepoint csom download

SharePoint makes the client object model available in a number of variations: In SharePoint 2010,; JavaScript Object Model (JSOM) .This MSDN article should also be listed when answering this question: Deciding Which SharePoint 2010 API to Use. Server-side Object Model.