What is the difference between test case and test script?

Test case is a description what data to be tested and what data to be inserted what are the actions to be done to check actual result against expected result what are the actual inputs we will use? What are the expected results? Is called test script. 
Test Script: Is a short program written in a programming language used to test part of the functionality of the software system. A written set of steps that should be performed manually can also be called a test script; however this is more correctly called a test case.