Color Map and Bump Map are just simple Image node. You have two: the classic:

And the Cycles-based:

The difference between the two are some parameters available in the Cycles version and not in the other. At the beginning, the classic one is easier to use.
You can change the label of a node by simply double-clicking on its title, so that you may enter what you want:

Abuse of Cycles nodes, not Double BigMac's... 

𝒫𝒽𝓎𝓁

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