The is made up of a series of tabs that organize the various buttons, drop-down lists, and galleries of options by a broad category. within each tab are groups which further organize the commands to you find and execute commands efficiently.

ribbon

Explanation:

Ribbon is the space at the top of the programs like excel and word, where we can find a lot of options to do in our presentations, this ribbon is divided in other categories where we can find specific options like font, number, and styles, this options was implemented from 2007 and is still used today, in addition we can modify and add other components at the ribbon

the difference is right there dont you see it