Enlist the components of Selenium.

There are 4 components of Selenium that include:

• Selenium Integrated development environment (IDE): This simple record tool comes as an extra Mozilla Firefox browser only. It is used to test a prototype.
• Selenium remote control (RC): It is also known as Javascript executor and supports programming languages like Java, Ruby and Perl.
• Selenium WebDriver: This is developed to solve the limitations of the Selenium RC. It is the most important component of selenium.
• Selenium Grid: It supports the execution of test script on different machines. The selenium grid and WebDriver are the major components of selenium.

These components of selenium offer various features or services such as supporting many browsers etc.