Well, if you're referring to computers specifically, no my PC is not overclocked. I'm not all too familiar with computer technology, aside of knowing the standard terminology (RAM, CPU, all of the simple stuff). I'm more of an Android (mobile OS) geek.
I do currently have my Android phone (HTC Evo 4G modded to run Android 4.0.4) overclocked to 1.1 GHz. I also have my crappy-as-hell tablet (technically an e-reader... it's a Nook Color XD) that I modded Android 4.0 onto also overclocked to 1.1 GHz, because without overclocking it, it's basically too slow to use.