The current highest-capacity internal hard drive that you can buy offers 3TB of storage space, which is huge. Soon you'll be able to put even more data on one, thanks to Seagate's recent achievement in data density.
The hard-drive maker announced today that it has become the first company to achieve the milestone storage density of 1 terabit (1 trillion bits) per square inch, promising to double the current hard-drive's capacity before the end of this decade. The company says its new storage technology will also allow hard drives to reach 60TB capacity within the next decade.