Difference between alpha Testing and beta testing-oral eg.

Alpha Test:  The first test of newly developed hardware or software in a laboratory setting. When the first round of bugs has been fixed, the product goes into beta test with actual users. For custom software, the customer may be invited into the vendor's facilities for an alpha test to ensure the client's vision has been interpreted properly by the developer.

Beta Test: A test of new or revised hardware or software that is performed by users at their facilities under normal operating conditions. Beta testing follows alpha testing. Vendors of packaged software often offer their customers the opportunity of beta testing new releases or versions, and the beta testing of elaborate products such as operating systems can take months