The document compares on-premises, hosted, and cloud computing models. On-premises involves bringing your own machines and infrastructure, while hosted uses rented machines with less control. Cloud computing provides a shared and scalable infrastructure through virtualization that users pay for based on usage. The document also discusses horizontal and vertical scaling and provides contact information for the company GoGrid, which offers cloud computing services.
7. On-Premises Hosted Cloud
Servers Servers Platform
• • •
Bring your own machines, Renting machines, Shared, multi-tenant
connectivity, software, etc. connectivity, software infrastructure
• • •
Complete control Less control Virtualized and dynamic
• • •
Complete responsibility Fewer responsibilities Scalable and available
• • •
Static capabilities Lower capital costs Abstracted from the
• •
Upfront capital costs for the More flexible infrastructure
• •
infrastructure Pay for fixed capacity, even Higher-level services
•
if idle Pay as you go
8. On-Premises Hosted Cloud
Servers Servers Platform
Colocation of hardware We host hardware for you Cloud infrastructure
you own
25. Axis How Scalability Complexity Capital Engineering
Scales Costs Costs
Horizontal More Massive High Low High
Moore’s Law-
Vertical Bigger Low High Low
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