What is the difference between test case and a test scripts?

This is regarding s/w testing.What is the difference between test case and a test scripts?
1.Difference is Test case is a set of different conditions which are valid/invalid but with valid output. Where Test script works only for the working conditions which are valid for the test





2.Test case:- what exactly we are going test ,that is written in a file.





test script:- after writing the test case we will write the test script.based on the test case.


3.Test Case:





* Test Case is a commonly used term for a specific test. This is usually the smallest unit of testing. A Test Case will consist of information such as requirements testing, test steps, verification steps, prerequisites, outputs, test environment, etc.


* A set of inputs, execution preconditions, and expected outcomes developed for a particular objective, such as to exercise a particular program path or to verify compliance with a specific requirement.





Test Script: Commonly used to refer to the instructions for a particular test that will be carried out by an automated test tool.





4.Test Case: Test case is a document that describes an input, action or event and an expected response to determine if a feature of an application is working correctly and meets the user requirements.





Test Script: Commonly used to refer to the instructions for a particular test that will be carried out by an automated test tool.