Upper case refers to the style in which letters are written or printed using capital letters, as opposed to the lowercase style which utilizes small letters. It is a typographical convention that distinguishes uppercase letters from lowercase ones in written language. The upper case style is characterized by larger, more prominent characters that are typically used to begin sentences, proper nouns, and titles.
In computing, upper case also refers to the function or key on a computer keyboard that allows the user to switch between uppercase and lowercase letters. By pressing the upper case key, all subsequent letters typed will appear in capital letters until the key is pressed again to revert to lowercase.
The use of upper case letters not only aids in readability and clarity in written language but also serves to denote emphasis or importance. It is especially prevalent in titles, headings, and logos where uppercase letters are employed to draw attention and create visual impact.
Furthermore, upper case letters are utilized extensively in programming and coding. A specific code written in uppercase may convey variables, constants, or commands in computer programs. Using upper case letters in programming languages helps to distinguish them from keywords, symbols, or functions.
In summary, upper case refers to the use of capital letters in writing, printing, or typing to denote prominence, clarity, and emphasis within a text. It is a convention practiced in various contexts, including written language, computer keyboards, and programming.
