Videotex is an outdated term and was mainly used to describe the transmission of data and information through a television set. Now, there are several synonyms for this term that can be used to describe the same thing. Some of the synonyms for videotex include teletext, viewdata, and prestel. These terms are used to describe the transmission of textual information through a television screen. Nowadays, these terms are rarely used, as most people use the internet to access information. However, it is important to know these synonyms for historical and academic purposes, as they were the precursors to the modern internet we know today.