Difference between HTTP and HTTPS, Explain how the data is secured in HTTPS?

HTTP is short for Hypertext Transfer Protocol, when you enter http:// in your browser, you inform browser to allow connection via http protocol which is TCP (transmission control protocol), in order to send and receive data packets over the web.
HTTPS is short for Hypertext Transfer Protocol Secure, when you enter http:// in your browser, you inform browser to allow connection via http protocol over secured connection encrypted by transport layer security