Hi Friend , Hope
you are doing well .
Today i am with new
and very popular topic called Cloud computing . As we know now a days cloud, cloud computing , VCN , OCI words are very popular because database and applications are moving to cloud
.
cloud providers like oracle, Microsoft , Amazon are ready to serve your
database management on rent basis and that's the reason cloud called pay as you
go Model . it means just
pay for those how much you need it to
manage db or infrastructure.
so Friends what is cloud Computing
cloud computing is on demand delivery of IT resources over internet as pay as you go model.
so as a client no need to invest money for IT infrastructure like hardware , server , networking , cpu , database , Application etc.
just login to cloud with your authentication take subscription from cloud providers and use it then pay per your bill .
Why cloud : ----
there are many advantage to move towards cloud from on premises :---
1) Capital Expenses ---- it will reduce capital expenses like no need to pay for server, cpu and infra .
2) pay as you go ----- every cloud vendor provides monthly billing so you can pay as needed like you can use 10 cpu in high load or 1 cpu in low load as per req can pay for that only.
3) global ---- every cloud vendor provides global data center like they have region and availability domain concept and you can keep your database and Application in that region which ever nearest or fusible to you .
4) Scalable ---- cloud technology is very much scalable in terms of infra-structure . whenever you want you can scale-up or scale-down your infra as per your use.
What are the cloud computing services
Basically we three type of cloud computing services . type depend on our usage like what exactly we are using
ex few organisation only needed software and they have their own infrastructure and programming i.e platform . few needed infra as well so on that cloud providers have divided cloud in 3 parts
1) Infrastructure as a service ( Iaas) ----- it provides vertualised infrastucture on internet and
client can use cpu,server, hardware , ram etc as how much they have requirement.
2) Plateform as a service (Paas) ------ Provides Plateform for Application devolopement .
3) Software as a service (Saas) ----- Provider software on rent basis , it means all infra and plateform would be with cloud provider and you can only use it . managing part by them .
you can login on " cloud.oracle.com " or create a user account go to payment page provide your credit card details it will deduct 1 Dollar ($) of amount and it will return you the same amount in your card . basically its a free account from oracle for one month period , and can learn as much as yo can .
