Data, Data and Where to Store It.

Part One - The History of Data Storage.

Since the time when computers became a significant part of our lives, the need to save and move data has existed. In the first installment of this three part series, we take a look at the history of removable data storage.

Prior to the invention of the floppy disk in 1971, computer storage existed in several mediums

including punch cards, magnetic tape and even rope. The original floppy disk made it possible to move data easily from one computer to another and on release had a grand total of 80KB of memory, enough data for a ten page word processed document or approximately 1% of a modern digital photo file. Floppy disks went through various iterations in physical size and capacity over a twenty year period and maxed out at 1.44 MB of storage before newer technology superseded them.

In 1987 (Walk Like an Egyptian anyone?) Toshiba invented flash storage, a new type of technology that uses printed circuit boards rather than spinning disks to store information. It wasn’t until the turn of the century though, when personal computers began shipping with USB ports, that removable flash storage in the form of thumb drives became widely available. Although expensive in its infancy, flash storage is now cheap, reliable and has enormous capacity compared to its floppy predecessor. 

In keeping with Moores Law that suggests computing power doubles every two years, Samsung have just revealed a flash drive with 16TB of capacity, enough for over 1000 HD copies of the entire Star Wars Series (or about 16000 HD episodes of Game of Thrones if that's more your style). Most recently, with the adoption of smartphones, cameras, GPS, etc, flash storage is everywhere in the form of SD cards. While other storage mediums like CD ROM have come and gone, flash, with its tiny size, large capacity, high speeds, 10,000 write cycles and great reliability have meant we've come a long way since the humble floppy disk of 40 years ago and it would be unusual for a person to not use flash storage in some form in a typical day. As always with all technology however, even a 16TB flash drive will soon be obsolete. Tech companies Intel and Micron are working on a new type of storage called 3D XPoint that is 1000 times faster than flash and ironically shares some concepts with the 1960's rope storage technology that was used on the Apollo Space Mission.

So where to next?

In part two we examine cloud computing and why Facebook is building data storage facilities in the middle of ice fields.