In English, it is called "Camel Orthography" (CamelCase) to rely on the size of words to spell the compound word. For example, BackColor this compound word, the first letter of color is capitalized.
This method of spelling is not allowed in formal English, but it is used extensively in programming languages and business activities. For example, Sony's best-selling game consoles Playstation,play and station two words in the first letter are capitalized. The advantage of this is that a series of descriptive words can be used to express a new meaning-because there is no space in the middle, it can be considered a new word (group) rather than a phrase.
It is called "camel orthography" because the case-sensitivity makes the compound appear "blocky" (bump) and looks like a camel's hump (hump), high and low.
"Camel orthography" is divided into two kinds. The first letter is lowercase, the first letter of each word is capitalized, it is called "Small camel Orthography" (lowercamelcase); the first letter, and the initials of each of the following words, are capitalized, called "Big Camel Orthography" (uppercamelcase), also known as "Pascal orthography." "(Pascalcase).
CamelCase Camel Spelling Method