Cloud Computing Simplified: IaaS vs. PaaS vs. SaaS Explained

Yasec Kowalski
3 min readApr 8, 2024

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IaaS vs. PaaS vs. SaaS

Let’s break this down into simple terms so it’s easy to get a grip on cloud computing and its different flavors. Cloud computing is like renting a house, a tool, or a car — instead of buying and taking care of them yourself, you use them when you need them, and someone else handles all the maintenance. There are three main types of ‘rental’ services in the cloud world: IaaS, PaaS, and SaaS. Let’s check out what each one means:

IaaS: Renting the Land and Materials Think of IaaS, or Infrastructure as a Service, as renting a plot of land with all the materials you need to build whatever you want. You get virtual space (like hard drives and servers) where you can build your website or app, but it’s up to you to make sure everything runs smoothly. It’s great because you can get as much space as you need, and you don’t have to worry about the nitty-gritty of owning the actual hardware.

A big name in IaaS is Amazon Web Services (AWS) — they’re like a massive landlord in the cloud world. They offer you virtual computers (EC2), storage units (EBS and EFS), and even your own private network space (VPC). Just remember, you’ve got the keys to the building, so you need to handle the security and upkeep.

SaaS: Renting a Furnished Apartment SaaS, or Software as a Service, is like renting a fully furnished apartment. Everything is set up for you — the furniture, utilities, and maintenance — all you need to do is live in it. With SaaS, you use software over the internet without worrying about installing it or fixing it if something goes wrong. Providers like AWS take care of all the technical stuff, so you just focus on using the software for your business.

Some everyday things that use SaaS are things like payroll systems (ADP), customer management tools (Salesforce), or even online office suites (Microsoft Office 365). These tools are super convenient and fast to set up, but they might not let you redecorate or knock down walls to make it your own — you’ve got to work within the layout they give you.

PaaS: Renting a Workshop to Create Stuff PaaS, or Platform as a Service, is like renting a workshop filled with tools for creating or fixing things. It’s a space where you can develop your apps or services with lots of tools provided, but you don’t have to manage or maintain the workshop itself. AWS has tools for this too, like Elastic Beanstalk and Lambda, which let developers build and run software without fretting over the servers and networks it sits on.

PaaS is fantastic for building things without worrying about the underlying systems, but it still means you might be limited to the tools and materials the workshop provides. If you need something very specific or unusual, you might not find it there.

Choosing the Right ‘Rental’ Service Deciding whether to use IaaS, PaaS, or SaaS comes down to what you need and how much control or responsibility you want. If you need a specific setup not offered by SaaS, or if it’s cheaper to roll up your sleeves and do a bit more yourself with IaaS or PaaS, that’s the way to go.

In the end, all these services are about making it easier for you to focus on your business without getting bogged down in technical details. It’s about finding the right balance of convenience, control, and cost that works for you. Just like picking the right place to live or the right car to drive, it’s all about what fits your life and your style.

Managing cloud complexity and protecting against data breaches demands expertise and vigilance. IAC Group offers both, streamlining your cloud operations and fortifying your defenses. Invest your time in business growth, not IT headaches. Ready for a more secure and simplified cloud experience? Visit IAC Group to explore our solutions or Book a Call to tailor a strategy that powers your success. We’re ready to transform your cloud challenges into your competitive advantage.

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Yasec Kowalski

All about the cloud, Infrastructure as Code and having a safety net spanned around your online products. → Founder of http://iacgroup.it