I want to know about Selenium IDE, RC, WebDriver, and Grid.

I am new to Selenium so I want to know about IDE, RC, WebDriver, and Grid or can anyone suggest to me where I will get about all this in detail?

i encourage you to first do some google search on the different key words you want, then checkout QAFramework Technical documentation(Cucumber-Selenium&Cypress Set up) - Documentation - OpenMRS Wiki which has a video link that shows how to run selenium tests

Feel free to get started with selenium Selenium Tutorial - Tutorialspoint