Relevance of the issue under study is due to the fact that students and IT specialists often face the difficulties in use of terms, and consequently insufficient knowledge of English computer terminology affects the efficiency of their work. The purpose of the article is to analyze the impact of computer terminology awareness on professional skills and qualification of IT specialists. The leading approaches to the study are empirical, experimental (conducting a survey, a questionnaire). The results showed efficiency of using English computer terminology to increase professional skills of IT specialists. The research highlights that knowledge of English computer terminology is one of the important professional skills of IT specialists. The article may be useful for students, teachers, and specialists in the branch of IT and for all computer users.