Published in the journal Science, In twenty years of study counted from 1986 to 2007. It is estimated there are about 295 exabytes of data stored all over the world or about 295 billion gigabytes. Very big right.
Dr. Martin Hillbert, University of Southern California in BBC Science in Action, once said
"Suppose we put the data in the form of a book and laid out, then it is able to cover the entire territory of the United States, or China in thirteen stacks of books."
Most of the conversion from analog to digital is done in the last 2 decades. In 2002 the amount of digital data has exceeded the data in analog form. The majority of data storage technology has been in digital format since the early 2000s, and 94% of the total digital data is now, stored in recent years
according to wikipedia Data center is a facility used to place computer systems and related components, such as telecommunications systems and data storage. These facilities typically include redundant or backup supplies, redundant data communications connections, environmental controllers (eg AC, ventilation), deterrent
Based on its function, the data center is divided into 2 general categories namely:
- Internet Data Center: only to support applications related to the Internet only, usually built and operated by service providers or companies that have a business model based on Internet commerce.
- Corporate / Enterprise Data Center: supports all functions that enable various business models to run on Internet services, intranets, and both.