This infographic visually outlines the advancements in ram and processors over the past four decades and beyond. One particularly interesting aspect of the infographic highlights the estimated cost of a gig of ram in 1966 all the way through its projected cost in the year 2030. The projected cost of a gig will be 25 cents in 2015. Moreover, Petabits will take over in 2018. This will bring the cost of storage to less than one penny!
Infographic Source: Chassis-Plans