The Computer Society style is conservative in the use of capital letters. A company’s or public relations firm’s wishes about capitalization rarely carry any weight.
For company, product, system, and language names, use an initial capital only. Editors should determine whether the term is really a proper noun or merely descriptive or generic.
For many years, Computer Society style prohibited the use of internal capitals in words, insisting on an initial capital only for product names, system names, and so forth. (Words such as MiniDIP and AutoCAD were accepted as combinations of words and acronyms.) This strict approach has not been sustainable in the real world. We now permit one internal capital when it is the first letter of another word, as in PostScript or MacDraw. Thus, we use Next (not NeXT) for the computer of that name. Only a few exceptions exist, for example, LaTeX and dBase. If in doubt, see the alphabetical section. Some departments have considered using an initial capital and small capitals, for example, CAPITALS. However, check with your department manager before using this style.
In the titles of articles, books, and so forth, capitalize nouns, pronouns, adjectives, verbs, adverbs, and first and last words. Function words (articles, coordinate conjunctions, and prepositions) are not capitalized, regardless of their length: “A Tree Grows in Brooklyn,” “Better Health through Psychotherapy,” “Keeping the Peace without Giving In.” For hyphenated words in titles, see CMS 8.159.
In references, use standard capitalization for titles but don’t lowercase internal capitals or improper acronyms that appear as part of a product or system name, even if it conflicts with the style guidelines. This is to avoid defeating case-sensitive search engines.
Names of departments, divisions, laboratories, and so forth are capitalized when used as part of an organization’s proper name: the University of Pennsylvania Department of Computer Science; the university’s computer science department; the IBM Almaden Research Center; Hewlett-Packard’s advertising department.