TG 3 Cloud computing

Question 1

Cloud computing

Answer 1

A convenient, on-demand, pay-as-you-go computing that grants users rapid and easy access across the internet

Question 2

Evolution of IT infrastructure

Answer 2

1. Stand-alone mainframe
   - Only for accounting and engineering
   - Secured safely
2. The addition of dumb terminals: Electronic typewriters with limited processing power, allowing users to input computer programs into the mainframe from their departments
3. Standalone personal computers
4. Local Area Network (Client/Server computing)
5. Enterprise computing
6. Cloud computing and mobile computing

Question 3

What are some disadvantages when using on-premise computing

Answer 3

• Expensive
• Typically the data centres are not used to their full capacity
• Inhibits the ability to adapt quickly

Question 4

Vertical clouds

Answer 4

Cloud infrastructure for multiple organizations