Here's the sort of milestone that I can really get behind: Computer storage company Seagate announced today that it has shipped its billionth hard drive. Providing a bit of context, the company notes that that amount is roughly equivalent to 79 million terabytes, which should give you enough space to store, say 158 billion hours of video or 1.2 trillion hours of music--nearly enough for your entire MP3 collection. Nearly.

Seagate shipped its first drive back in 1979. The ST506 was around 5 pounds, cost $1,500, and stored a whopping 5MB, at a cost of $300 per MB. These days, the company notes, the price is closer for a terabyte drive is closer to $0.00022 per MB.

While it took nearly three decades to ship that first billion, the company said that it expects to ship the second billion within the next five years. The company is currently shipping 111,600 TB a day--roughly the equivalent of 1TB a second.