old school - anything that is from an earlier era and looked upon with high regard or respect.  Can be used to refer to music, clothing, language or anything really.  (Urban dictionary)

I love using the term old school.  For me it signifies values, memories or a love for things that resonate feelings of who I am on the inside that perhaps I find more challenging to invoke on a regular basis now.  Sometimes I use it when referring to technology.  

Remember the old Polaroid cameras that printed up a picture within minutes?  The Polaroid camera was such a trailblazer, right?  The photo would come out with the white paper frame where you could write information underneath it, capturing that moment in time.