All about Serverless Computing.
                     All about Serverless 
computing
Serverless computing
• Serverless computing is a method of providing 
backend services on the basis of usage. In other 
words, serverless computing charges the user for 
only the compute resources and storage needed to 
execute a particular piece of code.
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What does it do?
• A Serverless provider allows users to write and deploy code 
without the hassle of underlying infrastructure. A company 
that gets backend services from a serverless vendor is 
charged based on their computation and do not have to 
reserve and pay for a fixed amount of bandwidth or number 
of servers.
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Benefits
• Usually, anyone who wanted to build a web 
application required physical hardware required to 
run a server, which is expensive and difficult. This has 
changed with the help of serverless computing.
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Role of Cloud
• With the help of Cloud, a number of servers or amount 
of space could be rented remotely. Developers and 
companies who rent these fixed units of server space 
generally over-purchase to ensure that a spike in traffic 
or activity wouldn’t hinder their working.
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Cost benefits
• In serverless computing, developers only have to pay 
for the services they use. It is similar to switching 
over from prepaid mobile data plans to pay per byte 
of data used.
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Backend services
• Most serverless providers offer database and storage 
services to their customers, and many also have 
Function-as-a-Service (FaaS) platforms. These 
platforms can execute pieces of code on the edge 
without storing any data.
Advantages
• Developers using serverless architecture don’t have 
to worry about scaling policies as it is taken care of by 
the serverless vendors. They also don’t have to pay 
for unused space and idle CPU time.
virtualtechinc.com
Other advantages
• Other advantages include simplified backend coding 
options to create independent functions and also for 
rolling out bug fixes and new features, developers 
can add and modify code on a piecemeal basis.
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Serverless vendors
• Some of the popular serverless vendors are AWS 
Lambda by Amazon, Azure Functions by Microsoft, 
IBM Cloud Functions, Google Cloud Functions etc.