Cloud Computing Basics

Warm-up: Sell the cloud to a sceptic

2 warm-up questions

• Have you ever had to convince someone older or less technical to trust a new technology — online banking, a smartphone, cloud storage? What worked?
• First try: I'm your manager. 'Everyone keeps saying we should move to the cloud. What is it, and why should I care?' — 30 seconds, go.

Reading: What the sceptic is judging

Read a 217-word text about What the sceptic is judging

What the sceptic is judging A manager who asks "why should we move to the cloud?" is rarely asking for a technology tour. They're judging three things: can you explain it in their language, can you tie the benefit to their business, and — above all — how you handle their doubts. Sceptics don't change their minds when you dismiss their objections; they change their minds when you welcome them and answer with evidence. Here's everything you need to know, compressed. The cloud means renting computing over the internet instead of owning the machines — someone else's professionally-run computers. There are three flavours, and in conversation one line each is enough: SaaS is ready-made software you just use (Gmail, Slack); PaaS is a platform developers build on without managing servers; IaaS is renting the raw machines themselves. The benefits worth naming: scalability (grow or shrink instantly), pay-for-use (no idle hardware), work-from-anywhere, and professional security and backups. And the three objections you will always face: "Is our data safe on someone else's computers?" — major providers employ security teams larger than most companies' entire IT departments. "Isn't it expensive?" — you stop paying for machines that sit idle. "Are we giving up control?" — partly, yes; honest answers admit the trade-off and explain why it's usually worth it.

Vocabulary: Cloud Terminology

6 items

Framework: The Sceptic's Tour

Define – Benefit – Objection – Evidence, 4 steps

Define – Benefit – Objection – Evidence: A four-move structure for explaining a technology decision to a doubter. The heart of it is move three: you invite the objection yourself, treat it as fair, and answer with evidence rather than enthusiasm.

Reading: Three model explanations

Read a 381-word text about Three model explanations

Three model explanations The same four moves — define, benefit, objection, evidence — tuned to three different sceptics. Notice how the benefit changes with the listener while the structure doesn't. To a CEO worried about security "In plain terms, the cloud means our systems run on professionally-managed computers we rent — you already use it: your email and your banking app both live there. For us the benefit is resilience: backups, monitoring and a security team watching around the clock — things we can't staff ourselves. The fair question is the one you're asking: is it safe to put our data there? The evidence: providers like Microsoft and Amazon are audited against stricter standards than any of our customers will ever hold us to — most breaches you read about come from a company's own mistakes, not the provider. The honest trade-off: we'd depend on their uptime. It's rare to lose, but it's not zero — and we'd keep our own backups regardless." To a finance director worried about cost "Instead of buying servers, we rent computing — like leasing rather than owning a fleet of vans. The benefit lands straight on your spreadsheet: today we own hardware sized for our busiest week, which means eleven months of paying for idle metal. Cloud is pay-for-use — busy December costs more, quiet February costs almost nothing. Your fair question: 'so why do I hear about cloud bills exploding?' Honest answer: it happens to companies that never switch anything off — rented machines left running are like hotel rooms booked and never used. That's a discipline problem, and it would be my job to manage it — with monthly cost reports you'd see." To a non-technical friend "It just means your stuff lives on the internet instead of on one device. The benefit: drop your phone in the sea, and your photos are still there — they were never only on the phone. The catch people worry about: 'so a company has all my photos?' Fair — and true. The evidence says they protect them better than your laptop does, but it does mean trusting them. The two-sentence advice: turn it on for the things you'd cry about losing, and use a strong password — that's the weakest link, not the cloud itself."

Practice: Cloud Concepts

Gap-fill exercise, 5 items

• ____ means using computing services over the internet.
• Gmail and Slack are examples of ____ applications.
• Cloud ____ allows you to easily add or remove resources.
• A ____ machine is a software computer inside a physical one.
• ____ migration means moving systems to the cloud.

Practice: Match Cloud Terms

Matching exercise, 5 items

• IaaS
• PaaS
• SaaS
• On-premise
• Scalability

Dialogue: Discussing Cloud Options

Role-play: Explaining cloud benefits to a manager (6 lines)

• Manager: I keep hearing about 'moving to the cloud.' What's the big deal?
• You: The cloud means using computing services over the internet instead of our own servers. It offers flexibility and can reduce costs.
• Manager: But isn't it risky to have our data on someone else's computers?
• You: That's a fair concern. However, major cloud providers like AWS and Azure often have better security than most companies can achieve on their own. They have dedicated security teams and certifications.
• Manager: What about costs? It sounds expensive.
• You: Actually, the cloud can save money because you only pay for what you use. You don't need to buy expensive hardware that sits idle most of the time. Plus, there's no maintenance cost.

Discussion: Win over your sceptic

3 discussion questions

• Mission: pick a real company you know (yours, or one you've worked with) and make the cloud case to me — I'm the sceptical manager. Use all four moves: define, benefit, objection, evidence. Success = a plain-words definition with a familiar example, ONE benefit chosen for my role, at least two objections handled without defensiveness, and one honest trade-off conceded. (Tutor: play the sceptic — raise the security objection AND the cost objection.)
• Second take: harder sceptic — 'We tried cloud two years ago and the bill was enormous. Why would this time be different?' Concede what's true, explain what went wrong, and rebuild the case.
• Compare with your 30-second first try. Which acronym did you cut, and which piece of evidence are you keeping for the next real conversation?