What is manual testing and automation testing?

Manual Testing:  Manual testing is a testing where test cases are executed by human tester and generate test report without help of any software automation testing tool.The tester check every essential features of the software to detect the bugs.

Automation Testing: Automation testing is a testing where test cases are executed with the assistance of software automation testing tool.Testers write test scripts and validate the software using appropriate testing tools.Automation testing allows testers execute repetitive task and regression test without the intervention of manual tester.