Cloud computing is a type of computing that relies on sharing computing resources or resources on the internet rather than having local servers or personal devices to handle your mission critical applications. In cloud computing, the word is used as a metaphor for the internet. so the phrase cloud computing means "a type of Internet-based computing," where different services — such as servers, storage and applications — are delivered to an organization's computers and devices through the Internet.
A lot of today's applications are now available through cloud computing. One of these appications is Quickbooks Online. While for years Quickbooks was looked as an accounting program that is installed on a user's desktop computer using a CD-Rom, Quickbooks has now went to the cloud. They developed an online cloud based program that allows the user to easily do all their business accounting online.