CCNP and CCIE Data Center Core DCCOR 350-601 Official Cert Guide, 2nd Edition

Chapter 5

Cisco Cloud Services and Deployment Models

In today’s world, cloud seems to be the answer to every question, from storing photographs to renting computing capability. But cloud computing history goes back to the 1950s when mainframes and time sharing were born. In this era, massive computers performed centralized computational operations, and an elite group of companies shared the computational power of these massive computers by paying a hefty price. In the 1960s, the first working prototype for ARPANET was launched, linking four geographically dispersed computers over what is now known as the Internet. In the 1980s and 1990s, more sophisticated machines capable of executing complex computational tasks at faster speeds were born and ...