Here is a nice picture that a friend of mine sent to me:
It shows an IBM 1GB hard disk (yes, that huge, bulky thing is actually a hard disk drive) manufactured in late 80s. On top left is a hand holding the modern version of 1GB, a 1GB SD card. It gives us an idea of how much advancement the computer hardware industry has gone through the last two decades.
It's really? Please give me one of the hardisk, I'll be happy :))
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