I explained every login on your computer with one house, from the front gate to the safe.
You keep getting asked for a password because there's more than one level of login. In January 2018 I published a video in my Teach My Mom series to walk through each level, and I used a house to do it, because everybody understands how a house works.
The business case
The question in the video is the one every beginner asks: why do I have to keep entering my password? I didn't answer it with settings screens. I drew a house first, then put the computer on top of it, one part at a time.
If you sell software to people who aren't technical, steal this move: start with a picture they already live in, then map each new screen onto it. I said up front that the video would go a little deeper than usual, because login is such a big deal on the internet. The house kept it simple.
The video is from 2018, so the screens are Windows and an iPad from that year, and one of my examples was Skype, which Microsoft retired in 2025. I've kept the examples as I gave them then.
The house
Picture a house with a gate in front. You walk through the gate and get to your front door. To get through the front door you need keys, because if it's not your house, you shouldn't be there.
Inside is a living room, a common area with doors to the other rooms: the bedroom, the kitchen, the bathroom. You go to the bedroom to change or take a nap, and to the kitchen to cook. The living room is the hub that gets you to every other room.
Some rooms are locked and some aren't. You might lock your bedroom, but you'd leave the bathroom open for guests. And in the bedroom you might keep a safe with a security code for the things that are very private.
The gate offers no real security. Anybody can walk through it, and it mostly keeps animals out. The front door is where the keys matter.
The power button and the front door
On a computer, the power button is the front gate. On an iPad it's on the side, and a phone has one too. Pressing it turns the device on.
The first thing you reach is the front door, the lock screen. On Windows it asks for your username and password, and the username is an email address. On an iPad or a phone you enter a number on a keypad, because a number is easier to type than a long email address.
Jump to
The whole explanation runs about 13 minutes in the full video on my channel: Why do I have to Login? on YouTube.
Everyone gets their own keys
When several people live in a house, each one has their own keys. You give your son a key, your daughter a key, maybe your husband. A Windows computer works the same way. The lock screen shows a list of the people who have keys to that computer, and you click your profile and enter your own information.
Using someone else's username and password is like borrowing their keys, and I said in the video that you shouldn't. An iPad works the same way with a different passcode. A phone usually has only one user.
The desktop is the living room
Once you log in to the device, you're in the living room. On a computer it's called the desktop: the open area with access to all the programs on the computer.
Think of each program as a door to a room with one job. In 2018 my example was Skype, for making calls. A browser is for browsing the internet. Microsoft Word is for creating documents.
In a real house you walk from room to room. A screen is flat, so you click an icon instead. The program you open takes over the whole screen and puts an icon on the bar at the bottom, the taskbar. Open another and it covers the first, with its own icon. To switch rooms, you click the icon on the taskbar.
Your email is the safe
Now open the browser and go to Gmail. You're already inside the house, and you're already in the bedroom, but Gmail asks for your username and password again. That's the safe. Your email is your personal inbox, private information, so it gets its own code.
Why the password comes back
That's the answer to why you keep logging in: the device has a front door, and the private things inside it have safes of their own. At the end of the video I said the next one would cover browser tabs, switching between websites while you're inside the browser. Next time your mom asks why the password keeps coming back, draw the house before you open a single setting. If you want to talk tech in plain language with other founders, join me live on Friday.
About Dwain
I'm Dwain Browne, Founder of LeadScore AI and SnapSuite. I'm a Toronto-based software architect with 25+ years across software, sales, operations and entrepreneurship. SnapSuite helps contractors and trades teams get paid faster, and LeadScore AI shows you which leads deserve your next call. I also run Vibe Code to Profit, a community helping people build software with AI.