What is cloud computing in AWS - Visual Explanation

Process Flow - What is cloud computing

User Needs Computing

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User Connects to Cloud

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Cloud Provider Offers Resources

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User Uses Resources Remotely

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User Pays for What They Use

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Cloud Scales Resources as Needed

Cloud computing lets users access and use computing resources over the internet, paying only for what they use, with the cloud provider managing the hardware.

Execution Sample

AWS

User requests server
Cloud allocates server
User runs app on server
User stops server
Cloud frees server

This shows how a user requests and uses a server in the cloud, then releases it when done.

Process Table

Step	Action	System Response	User Impact
1	User requests a server	Cloud checks availability	User waits for server allocation
2	Cloud allocates server	Server is ready to use	User can start using server
3	User runs application	Server runs app smoothly	User gets app service
4	User stops server	Cloud marks server as free	User stops paying for server
5	Cloud frees server resources	Resources become available for others	Cloud optimizes resource use

💡 User stops server, cloud frees resources, ending the session

Status Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	After Step 4	Final
Server Status	Not allocated	Requested	Allocated	Running app	Stopped	Freed
User Cost	0	0	Starts billing	Billing continues	Stops billing	0

Key Moments - 2 Insights

Why does the user not need to own physical servers?

Because the cloud provider manages the hardware and allocates servers on demand, as shown in execution_table steps 1 and 2.

How does the user pay for cloud resources?

The user pays only while the server is allocated and running, as seen in variable_tracker where User Cost starts billing after step 2 and stops after step 4.

Visual Quiz - 3 Questions

Look at the execution_table, what is the server status after step 3?

A Requested

B Allocated

C Running app

D Stopped

💡 Hint

Check the 'Server Status' row in variable_tracker after step 3

At which step does the user stop paying for the server?

A Step 2

B Step 4

C Step 3

D Step 5

💡 Hint

Look at 'User Cost' in variable_tracker; billing stops after step 4

If the user never stops the server, what happens to the cloud resources?

A Resources remain allocated and user keeps paying

B Cloud frees resources automatically

C Server status becomes 'Stopped'

D User cost resets to zero

💡 Hint

Refer to execution_table steps 4 and 5 where stopping server frees resources and billing stops

Concept Snapshot

Cloud computing means using computing power and storage over the internet.
Users request resources like servers from a cloud provider.
The provider allocates and manages hardware remotely.
Users pay only for what they use, scaling up or down easily.
This removes the need to own physical servers.

Full Transcript

Cloud computing allows users to access computing resources like servers and storage over the internet. When a user needs a server, they request it from the cloud provider. The provider checks availability and allocates the server. The user runs their applications on this server and pays only while using it. When finished, the user stops the server, and the cloud frees the resources for others. This model removes the need for users to own physical hardware and allows flexible, on-demand computing.