The development of data storage-MicroSD capacity, it took 9 years to change one letter.

Disk invention has been nearly 60 years, 601, the original data storage and current data storage are different? Foreign famous Media Computerworld also selected 7 product contrast pictures to illustrate data storage technology and the changes of the times. Let's have a look ...

1, relative to disk nearly 60 years of development, NAND Flash is a new thing. 1987, Toshiba released the world's first NAND flash. We see that from 2005 to 2014, MicroSD's capacity has increased 1000 times-fold. 10 1000 times times that's the speed of Flash:

2, 1956, the first hard disk capacity of only 5MB, the volume is larger than 2 refrigerators. 2013 main hard disk capacity is 4TB, the size of only 3.5 ″. Seagate predicts that in 2020, the capacity of a mechanical hard drive with new technology will reach 60TB. Wow, what a great capacity:

3. Let's take a look at the Enterprise disk array. On the left is 1991 EMC's Symmetrix first-generation high-end storage with only 4 hard drives, 2GB capacity and 256MB memory. On the right is 2013 EMC's newest Symmetrix 10th-generation high-end storage VMAX, a cabinet that can support 240 3.5 "disks, 128GB of RAM. The overall system can be expanded to more than 2PB, the capacity is 1 million times times higher than the first generation of products more than 20 years ago:

4, if not looking at technology, only look at the function, the gap is greater. 1974 Mechanical hard disk capacity of only 200MB, weighing 10 pounds. And 2013 a Toshiba 512GB PCIe NAND Flash disk, only a single memory size:

5, even if the same mechanical hard drive, the situation is very different. On the left is the 1981 Dec hard drive, made with the popular 14 "platter." On the right is Seagate's micro-drive, which is smaller than 1.8″, but has a much larger capacity:

6, Flash and flash compare also greatly improved. 1996 a flash memory card only 40MB, and 2013 the same size of the flash drive is 960G:

7, as for the tape library, has been declared countless times its death, but has been alive, become an industrial joke. Tape has a longer history than disk and has a tape library in the early 1950s. On the left is the 1952 IBM 726 Tape Library, with a capacity of only 2MB, while the right-hand side is IBM's newest TS3500 tape library with a capacity of up to 125PB. The capacity of a cassette is now up to 6TB, and a cassette is expected to be 128TB in 2022.

Look at these comparisons, we have any regrets. That is, when our generation retires, time will be vastly different. Decades of time, enough to change a lot of things. Although stored in the IT process, it is relatively slow.