Clarification of vector definition

[k4y3ff]

The definition of vectors could use some clarification:

Vectors are sequential collections of data. You could say they are lists of data, but
we also have another collection called a list. If you have programmed in another
language, these might have been called arrays in that language.

This doesn't clearly define what vectors are; it mostly defines what they are by comparison (not "lists," but "arrays"). It would be worthwhile to rewrite this definition for students who have never programmed before.