What is Cloud Computing?
What is Cloud Computing? Cloud is not a specific technic, it is a notion or an way of thinking. Cloud Computing : Computing Process Service by Cloud vendors not our PC. Background of Computing 1980s Main Frame 1990s Client & Server 2000s Network & web browser 2010s Cloud Computing 2020s ? we don't know yet Definition of NIST(National Institute of Standards and Technology) Here are some NIST definition. 1. Order-oriented Self Service. Client can use it without seller’s help. 2. Borad Network Access. Mobile, Desktop, Laptop, etc. We can access using many kinds of device. 3. Sharing Resource. We use vendor's resource and share it. We don't know where it is. 4. Rapid Scalability. Scale up, Scale down is always ready. 5. Mesureable Service. ...