The first computer disk drive was the IBM 350, released in 1956. It was the size of a small refrigerator and required fifty 24-inch disks to store 3.75 megabytes.
Today, that would be enough to store a few low-quality photos, part of a song file or a few seconds of video. Oh, and it cost $3,200 a month to lease ($26,900 in 2014 money).
Nearly 60 years later, a hard drive that fits comfortably in your hand can hold a million times more information and only costs a few hundred dollars. And if you think that's amazing, then you won't believe what Samsung just unveiled at the 2015 Consumer Electronics Show.
What Samsung revealed is a solid-state hard drive called the Portable SSD T1. It's the size of a business card and only a third of an inch thick, but it holds 1 terabyte of information. That's 1,000,000 megabytes - compare that to the IBM 350's 3.75.
So, forget about fitting comfortably in your hand, it can slip into a pocket or anywhere else. You can carry an entire computer's worth of information anywhere you go. And there's more.
To get the small size, it's a solid-state drive that uses Samsung's new 3D V-NAND flash memory. Here's a video on the process if you're interested.
Not sure of the different between an SSD and a conventional computer hard drive? Click here to find out.
As an SSD with 3D V-NAND, it's going to be super fast - and Samsung claims it put software in place to make it four times faster than similar drives - and you're going to have a hard time breaking it.
Since you're carrying around that much information on something that's easy to lose or have stolen, it has optional encryption so thieves and snoops won't have access to everything.
The real kicker is the price: $599.
OK, that's actually a lot of money, but not when you think about what you're getting. And I'm sure in a year or two it will be $200 or less. In fact, the 250 gigabyte model is only $179, and five years ago it would have been more than $1,000.
So, what do you think? Is this a game changer for portable hard drives? Can you even think of a reason you'd need to carry 1TB of information around with you? Let me know in the comments.