Objects are a key element in Salesforce CRM, as they provide a structure for storing data and are incorporated into the interface, allowing users to interact with the data.
Similar in nature to a database table, objects have properties such as:
Fields, which are similar in concept to a database column
Records, which are similar in concept to a database row
Relationships with other objects
Optional tabs, which are user-interface components that display object data
Salesforce provides standard objects in the application when you sign up; these include Account, Contact, Opportunity, and so on. These are the tables that contain the data records in any standard tab, such as Accounts, Contacts, and Opportunities.
In addition to standard objects, you can create custom objects and custom tabs.