This article examines the degree to which officialized terminology in the field of information technology (IT) is integrated into business communications. The objective of the article is to measure the influence of the linguistic recommendations produced and circulated by the Office québécois de la langue française. For this study, I applied the terminometrics protocol developed by Jean Quirion (2000) and measured the degree of implantation of officialized terms for computer peripherals and that of other French and English equivalents, as found in a corpus made of websites of IT companies. The study reveals that the officialized terminology is largely used in the corpus and confirms the importance of terminology implantation studies in a language planning context.