When Mac systems are discussed online, you will often see them mentioned by their common name, such as “Late 2012,” “Mid 2013,” or “Early 2013,” etc. These names suggest a model number, and sometimes are specific enough to identify your model in question; however, this is not the true model identifier of your Mac.
Along with the common model number, each Mac revision has a Model Identifier that is specific to the motherboard and Continue reading
Apple’s upcoming OS X 10.10 “Yosemite” will come with a 
