Surely hard drives have come a long way in the past couple of decades. The above pictured big machine (which looks like a car's radiator) is a 1GB IBM hard drive and next to it is a 1GB SD card.
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(image of 51 years old hard drive after the jump)

Below is a picture of an IBM 305 RAMAC hard drive launched in 1956 (a full 51 years ago!). Its so big that you need an aeroplane to move it. It weighed over a ton and stored a massive 5MB of data (5MB was considered to be huge at that time).

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