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What is IT infrastructure ?
==============================

=> The resources which are required to run our project are called as IT infrastructure.

		1) Machines

		2) Storage

		3) Network

		4) Security

		5) Monitoring

=> We can use IT infrastructure in 2 ways

		1) On-Prem Infrastructure

		2) Cloud Infrastructure

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What is On-Prem Infrastructure ?
=================================

=> Purchasing and Managing resources on our own

=> We have several challenges with on-prem infrastructure

		1) Lot of money investment

		2) Scalability issues (increase or decrease)

		3) Availability (24 / 7) issues

		4) Security & Privacy issues

		5) Disaster Recovery issues

=> To overcome all these challenges we are using cloud infrastructure.

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What is Cloud Computing ?
==========================

=> Providing IT resources on demand basis over internet is called as cloud computing.

=> Instead of purchasing and managing IT resources we can take IT infrastructure for rent.

=> There are many companies who are providing IT resources for rent, those companies are called as Cloud Providers.

=> Cloud Providers giving services based on "Pay As you Go" Model.

=> We have several advantages with Cloud Computing

		1) No Investement

		2) Pay as you go

		3) Scalability

		4) Availability (24 / 7)

		5) Reliability

		6) Security & Privacy

		7) Backup

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Cloud Providers
================

=> The companies which are providing IT resources through internet are called as Cloud Providers.

1) Amazon ----> AWS

2) Google -----> GCP

3) Microsoft ----> Azure

4) Salesforce
5) Digital Ocean
6) Oracle
7) IBM

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What is AWS ?
===============

=> AWS stands for Amazon web services

=> AWS cloud came into market in the year of 2006

=> Today 190+ countries using AWS Cloud services to manage their business.

=> AWS having Global Infrastructure (Regions & AZs)

		Region = Geographical Location

		Availability Zone = Data Center (Server Room)

Note: In one region, multiple availability zones will be available.

=> AWS Cloud works based on Pay As You Go model.

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How to use AWS Cloud ?
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=> To encourage new learners and beginners AWS cloud providing Free Tier Account with 1 year access.


Note-1 : To create account debit card or credit card is required. 

Note-2 : AWS will not deduct any amount from cards automatically.

Note-3 : If we use any paid service in AWS then bill will be generated. If we don't pay that bill amt, our AWS account will be suspended.

Note-4 : We can request AWS Support team to make our bill as zero and we can ask for some free credits also to explore AWS cloud services.

@@ How to setup AWS Free Tier Account : https://www.youtube.com/watch?v=xi-JDeceLeI

@@ How to make AWS Bill as Zero : https://www.youtube.com/watch?v=PvSGOheevL4