Computer Skills
Beginner
60 mins
Teacher/Student led
Learning Goals
Learning Outcomes
+80 XP
What you need:
Chromebook/Laptop/PC or iPad/Tablet

Computer Storage & Memory: Where Your Work Actually Lives

Learn where your work actually lives by saving the same file to cloud storage, your computer and a USB stick. Understand RAM versus permanent storage, and build a habit that protects your coursework.

Teacher Class Feed

Load previous activity

    1 - Introduction

    Welcome

    Every time you open a file, your computer pulls it from permanent storage into something called RAM, the working memory that vanishes the second the power goes off. Today you'll see where your work actually lives, and you'll build a habit that separates losing your coursework from keeping it: save it in three different places.

    By the end of this lesson, you will be able to:

    • Tell the difference between RAM and permanent storage
    • Save the same file to local storage, a USB stick, and cloud storage
    • Explain why saving often is a habit worth building

    Warm-up

    Think of a time the power went out, a laptop froze, or the school network dropped while you were working. Did you lose anything? If you didn't, why not? Sit with that for thirty seconds before moving on.

    👇 Mark your steps as done as you complete them.

    +5 XP

    2 - Key Concepts

    Before saving anything, it helps to know the difference between the memory your computer is using right now and the memory that actually keeps your file.

    ConceptWhy it mattersExample
    RAM (working memory) — fast, temporary memory that holds whatever is open right nowWhen power goes off or an app crashes, RAM is wiped; anything that wasn't saved is gone—
    Permanent storage — memory that keeps files even when the machine is offNothing exists until it lands in storage; a file open in RAM alone is not yet a saved fileYour {{code:01_project_brief}} sits in cloud storage, not in RAM
    Local storage — files saved on the specific computer you are using (its hard drive or SSD)Fast to open, but tied to one machine; if that machine dies or isn't yours tomorrow, the file is stuck thereThe Downloads folder on a school PC, gone the moment you sign in on a different PC next week
    USB stick — a small portable drive you plug into a USB portPhysical backup that doesn't need internet; handy for bringing work to a Work Experience placement or a job interviewA CV on a USB for an Intreo appointment when the office Wi-Fi is unreliable
    Cloud storage — files stored on remote servers, reached through a browserAccessible from any device, auto-backed up, survives if your laptop is lost or stolenYour {{code:Digital_Portfolio}} on OneDrive or Google Drive

    The rule of three

    Professional advice for anything you can't afford to lose: keep at least three copies in at least two different kinds of places. One in the cloud, one on the local machine, one on a USB is a simple version of that rule. If any single location fails tomorrow, you still have your work.

    Save often

    Autosave exists in online apps, but not everywhere. Building the habit of pressing {{kbd:Ctrl+S}} (Windows/Chromebook) or {{kbd:Cmd+S}} (Mac) every few minutes costs you nothing and protects you from the one time the network drops mid-sentence.

    👇 Mark your steps as done as you complete them.

    +10 XP

    3 - Step-by-step Task

    Save your {{code:01_project_brief}} to three different locations — cloud, local, USB — and take a screenshot of each. You'll use those screenshots in the next step to build your portfolio page.

    Your school uses either OneDrive (Microsoft 365) or Google Drive (Google Workspace). Use the tab that matches your account.

    How to take a screenshot and save it to your Desktop

    Each platform works differently. Use the one that matches your computer, then save each image to your Desktop so you can find it again in the portfolio build step.

    • Windows: Press {{kbd:Win+Shift+S}} and drag a box around the area you want. The image copies to the clipboard. Click the small preview notification that appears in the bottom-right corner, then click {{btn:Save}} and save the file to your Desktop. (Alternative: press {{kbd:PrtSc}}, open {{btn:Paint}}, paste with {{kbd:Ctrl+V}}, and save as a .png file to your Desktop.)
    • Mac: Press {{kbd:Cmd+Shift+4}} and drag a box around the area. When you let go, the image saves straight to your Desktop as a .png file.
    • Chromebook: Press the Screenshot key on the top row of the keyboard, drag a box around the area, and click {{btn:Capture}}. The image saves to your Downloads folder. Drag it onto the Desktop if you want it there.

    Name your three screenshots so you can tell them apart: cloud_copy, local_copy, usb_copy.

    +15 XP

    4 - Common Issues

    Common Issues

    IssueSolution
    I pressed {{kbd:Win+Shift+S}} but nothing savedWin+Shift+S on Windows only copies the image to the clipboard. Look for a small preview notification in the bottom-right corner and click it, then click {{btn:Save}} to save the file to your Desktop. Or paste into {{btn:Paint}} with {{kbd:Ctrl+V}} and save from there.
    I downloaded the file but can't find it in DownloadsCheck the browser's downloads bar at the bottom of the window and click 'Show in folder'. You can also search your file manager for 01_project_brief to locate it.
    My USB stick doesn't show up in the file managerUnplug and try a different USB port. If it still doesn't show, try another port or another computer. Older USB sticks can fail without warning, which is exactly why you keep a cloud copy.
    The cloud says 'Saved' but I can't see my file on a different deviceRefresh the browser tab. Cloud storage can take a few seconds to show a new file across devices. If it still doesn't show, check that you are signed into the same account on both machines.
    What's the difference between Save and Save As?Save updates the current file in its current location. Save As creates a new copy, which is how you put a copy in a different folder or under a different name. In online apps (Word Online, Google Docs) you rarely need Save As because everything auto-saves as you type.
    +10 XP

    5 - Portfolio Build

    Independent Practice

    Your goal: Turn the three screenshots you just captured into a portfolio page that proves your project work lives in three different places, the habit that will save you the week your laptop dies the night before a deadline.
    Time: ~15 minutes
    Task: Open your {{code:Digital_Portfolio}} folder in your cloud storage and create a new document called {{code:04_storage_proof}} from inside it. Insert the three screenshots you saved on your Desktop — {{code:cloud_copy.png}}, {{code:local_copy.png}}, {{code:usb_copy.png}} — in that order, with a one-line caption under each that names the location and explains why that copy protects you if the other two fail. To insert a screenshot, click {{menu:Insert -> Picture}} in Word Online (then choose {{btn:This Device}}) or click {{menu:Insert -> Image -> Upload from computer}} in Google Docs, then pick the file from your Desktop. Finish the page with a single closing line: "If I lost the file today, I would still have it because …"
    Success criteria:
    • {{code:04_storage_proof}} sits inside {{code:Digital_Portfolio}} (created from inside the folder, not moved in afterwards)
    • The document contains three screenshots, one per storage location, in the order cloud then local then USB
    • Each screenshot has a one-line caption in your own words naming the location and the protection it gives you
    • The closing line is completed, naming at least one of the three locations by name
    +15 XP

    Unlock the Full Learning Experience

    Get ready to embark on an incredible learning journey! Get access to this lesson and hundreds more on our learning platform.

    Get started
    Copyright Notice
    This lesson is copyright of Coding Ireland 2017 - 2025. Unauthorised use, copying or distribution is not allowed.
    🍪 Our website uses cookies to make your browsing experience better. By using our website you agree to our use of cookies. Learn more