There was a time when nearly all organizations owned and operated their own data centers. In the 21st century, businesses are seriously considering whether they should own their own data centers. The costs of building facilities are beyond the scope of many smaller businesses and the hardware has to be upgraded. Building and operating data centers is attractive to those businesses who like to have control over their data. Other technology managers are considering the cloud to cut costs. Public
cloud providers offer businesses access to computing power and storage on demand which is a good choice as it allows businesses to just pay for what they use as apposed to forking out for equipment they seldom use.