I loved my FreeSpeed Pro clocking card for my slot A athlon made my 650mhz do 800Mhz Awesome Speed increase for the day and age!!
I remember when Google didn't exist and it was all about the hotbot!

Them were the days. Back then the AMD's were the best gaming chips.
Both of those examples are initialisms and the rules on whether you can use an apostrophe to signal a plural are debatable at best, some style guides recommend you use them and some don't but I don't think there is a definitive right or wrong.
I tend to not use one but the problem comes when you are writing in one case. If you are restricted to using uppercase for example then you kind of have to use and apostrophe to show the trailing 'S' isn't part of the initialism/acronym.