FACTUAL RIDDLES XXIV

You know what upper and lower case are, but what is camel case?

Answer:

Camel case (camelCase) is the practice of writing compound words or phrases such that each word or abbreviation in the middle of a phrase begins with a capital letter, with no intervening spaces or punctuation. It is derived from the humps on a camel's back. Some common examples are:

iPhone
eBay
FedEx

When two or more full words with initial capitals in camelCase are run together, it is called a WikiWord:

WordPerfect
YearTwoThousand