With technology comes technological jargon. Often, this is not written down and so is lost to antiquity; when it is used in written work the definitions are crucial to understanding the sentences in which they occur. It is important to preserve this information. (See:
However, questions about terminology of the time might collect lots of unsourced answers with terms used only by small groups of people. This is less of a problem with questions about defining a term than questions asking for terms.
Should questions about terminology be on-topic?