What you say is true. Yet, it is not technically incorrect to use the = apostrophe in such manner. Some grammarians consider it archaic and some d= o = not. Similarly, the use of commas has been relaxed since the early 60s. ----- Original Message ----- = From: "Jinx" To: "Microcontroller discussion list - Public." Sent: Tuesday, January 08, 2008 10:36 PM Subject: Re: use of apostrophe on initials (was: Re: [EE] How to destroy = CDs&HDDs?) > "The use of the apostrophe after initials (LP=92s, VIP=92s) is actually t= he > older style: it was traditionally taught as the only correct form until > the past couple decades, when leaving the apostrophe out became > an acceptable variant" Of my collection of dictionaries, only the 1978 US Random House says specifically that an apostrophe is used for plurals of acronyms. The others (going back into the 1950s) may not have felt it worth mentioning. Generally it's used (as in it's) to show the omission of letters, eg o'clock or fo'c's'le. But you might think, in these lazy days, the fewer characters the better, hence CDs not CD's. If you use upper-case for the acronym, a lower-case 's' stands out well enough As I said, I can live with 's, but C/D,s really is above and beyond the call of duty for a grammar mangler. You'd love to ask whoever made those signs, and the person who approved them, "Show me ONE other person in the whole world who writes C/D,s. And why didn't you write D/V/D,s ?" > I enjoy watching these rules change over the years, so I keep > the old ones It is interesting seeing them change. Ignorance of the past though, for example things that used to be general knowledge, is a little disappointing. A couple of months ago a senior policy-maker for the NZ education ministry said that "facts don't need to be taught anymore. That's what the Internet is for". Eeeeuuuw -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist = -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist