I finally decided to devote some time to learning elisp and get rid of the shame I have every time I copy and paste code into my .emacs file. I’m now reading Programming in Emacs Lisp (Second Edition) by Robert J. Chassell. It is really good reading. Not only to learn elisp but also because the author is a great writer and I have the feeling he is interested in the history of words. Etymology is a fascinating field.
The text mentions, for example, where the word buffer comes from:
The word `buffer’, by the way, comes from the meaning of the word as a cushion that deadens the force of a collision. In early computers, a buffer cushioned the interaction between files and the computer’s central processing unit. The drums or tapes that held a file and the central processing unit were pieces of equipment that were very different from each other, working at their own speeds, in spurts. The buffer made it possible for them to work together effectively. Eventually, the buffer grew from being an intermediary, a temporary holding place, to being the place where work is done.