Cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.
The history of cloud computing is often traced back to the 1950s, when scientists at the Massachusetts Institute of Technology (MIT) began experimenting with using computers to share resources. In the 1960s, the U.S. Department of Defense (DOD) developed a network called ARPANET, which allowed computers at different locations to communicate with each other.
In the 1980s, ARPANET was used to develop the concept of virtual private networks (VPNs), which allowed businesses to securely connect their networks to each other. In the 1990s, the World Wide Web (WWW) was invented, and this led to the development of web-based applications that could be accessed from anywhere in the world.
In the early 2000s, companies such as Amazon and Google began offering web-based services that allowed businesses to rent computing resources, such as storage and processing power, on an as-needed basis. These services were typically delivered over the internet, and they became known as cloud computing.
Today, cloud computing is used by businesses of all sizes, and it has become an essential part of many industries, including healthcare, finance, and retail.