Four orders of magnitude

My first laptop had a 2.1 GB hard drive 21 years ago. I very quickly had to choose between playing Quake II or keeping my music. Thank God for CD burners! Now, Western Digital is releasing a real beast:

As operators of cloud datacenters need more storage capacity, higher capacity HDDs are being developed. As data hoarders need more capacity, higher capacity HDDs are needed. Last week Western Digital introduced its new Utrastar DC HC650 20 TB drives - hitting a new barrier in rotating data.

That's roughly 10,000 times bigger than the cramped drive I had in the previous century.