A synecdoche<span> is a </span>figure of speech in which a term for a part of something refers to the whole of something or vice versa,and the specific for the general, the general for the specific, or the material for the thing made from it. That is well know to be confused with the Metonymy. Also sorry if I confused you. <span>(◕‿◕✿) </span>
A it is like simile figurative and that can take many forms so it is very effective and best to read
The best answer to this question is: E-mail was created before personal computers.
<em>According to the statement of this timeline, The first email was created in 1972, which is before 1977, the year of personal computer was developed. </em>