I'd like to know exactly what DIP means, since googling it gives me several outright contradictory answers.
I used to assume that DIP and DIL mean these guys only:
That is, through-hole packages with two symmetrical rows, 0.1" (2.54mm) spacing between leads and 0.300"~0.325" (about 8mm) spacing between rows. If I wanted to specify the number of pins, I'd call them DIPn, where n is the total number of pins (obviously, n is always even). I call these guys "regular DIPs".
Then I found out these guys exist, and apparently are also DIPs (I call them "big DIPs"):
Then I found out this guy exists: ("mutant middle sized DIP"?)
So, lots of questions: are they really all DIPs? If yes, how do I specify which size I am talking about? And what about acronyms like PDIP, CDIP, SDIP and SPDIP? And finally, when referring to pin number, some sources say DIP8 and others 8-DIP. Is there a difference? Also, can I always use "DIL" and "DIP" interchangeably?
Also, Wikipedia tells me SMD DIPs are a thing. What about that?