What are uppercase letters? Uppercase letters are capital letters—the bigger, taller versions of letters (like W), as opposed to the smaller versions, which are called lowercase letters (like w). Uppercase means the same thing as capital.

What is upper and lower case letter in password?

Your password must be at least 10 characters long. Remember that UPPERCASE letters are different from lowercase letters (for example, A is treated as different from a). It must contain at least one character that is not a letter, such as a digit.

What is the example of upper and lowercase letters?

For example, the first three letters of the alphabet in uppercase form are A, B, and C. Those same three letters in lowercase form are a, b, and c. Historians believe that majuscule or uppercase letters came first.