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Thursday, April 16, 2020

Learn Azure - #1 Introduction to cloud

Prior to cloud, we used to 

  • Buy servers
  • If traffic increases, buy more servers
  • Monitor and maintain servers

Which had many disadvantages, to name a few

  • Setup was expensive
  • More efforts on infrastructure problems, tend to loose focus on business goals
  • Severs used to stay idle for most of the time
  • Lack of space to store huge digital data

What is cloud?

A huge space or collection of data centers, where you can rent resources/services through network.
we can rent the servers, compute capacities, storage places, compute service etc, the team behind cloud take care of all your related issues like security, infrastructure problems which will help us to focus simply on business goals.


What is cloud computing?

  • Storing data/apps on remote servers
  • Processing data/apps on servers
  • Accessing data/apps via internet


Service models:

  1. Saas- Application or software owned by provider, used by client e.g. Gmail
  2. Paas- Using platform provided by provider to create your own apps, e.g Google app engine
  3. Iaas- Whole infrastructure is provided, to utilize and build apps


Deployment models:

  1. Public cloud- Available to worldwide through internet
  2. Private cloud- Limited to number of users, has more control over data.
  3. Hybrid cloud- Mix of Public and Private


Cloud Provider:(major providers by April 2020)

  • Amazon web services ( larger than other providers)
  • Microsoft Azure (second best)
  • Google cloud platform (cheapest in the market)
  • Alibaba Cloud
  • IBM Cloud
  • VMware
  • Hewlett Packard Enterprise
  • Cisco
  • Salesforce
  • Oracle
  • SAP
  • Workday
  • Adobe

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