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The hidden world of everyday coding

Updated Friday, 12 September 2025

Coding isn’t just something for computers or programmers. We all use it and it quietly powers much of our everyday life, but you don’t need to be a coder to understand or appreciate it, as these everyday examples demonstrate.

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Have you ever wondered what happens when you press that button at the pedestrian crossing?

You’re not just waiting for luck … behind the scenes you’re triggering a coded sequence that communicates with a traffic control system. It checks the flow of cars and schedules a safe pause and then tells the lights when to change. It’s clever programming that keep drivers and pedestrians moving smoothly and safely, so next time you cross the road, remember that coding is literally helping you get to the other side!

 
We see bar codes every day, but have you ever thought about how they work?

These black-and-white lines are actually a tiny piece of code that, when scanned, the product pulls the system information, for example the price, and it updates the stock level. It’s like a secret language between the basket and the computer. So next time you are at the supermarket checkout, remember that coding is right there in your basket.

Next time you step into a lift, thank an algorithm!

Lift systems are programmed to work out the most efficient route, reducing wait time and saving energy. It’s coding working quietly behind the scenes to make everyday life smoother and keeping us from awkward lift conversations!

Even your washing machine is powered by coding

Software tells it exactly how long to wash, rinse and spin your clothing, and sensors help it to decide how much water to use. All this is everyday coding making your life easy, fresh and convenient, without you lifting a finger … well, apart from you loading the smelly socks in!

Coding making technology more accessible for everyone

Voice assistants, like Siri or Alexa, might feel like magic but behind the scenes they rely on AI coding. They are programmed to understand speech patterns and accents, and inclusive design helps them respond to people of different ages and abilities.  

Spot the code in your day

Now that you’ve seen some examples, why not try spotting coding in action in your own daily life? Look around and ask yourself: what’s quietly running on code right now?

The contactless card reader on your bus or train? The fitness app that tracks your steps? The thermostat that keeps your home warm or cool? Even your morning alarm clock?

You might be surprised at just how many things around you depend on coded instructions to work properly. By noticing these little details, you’ll start to see coding not as something distant or complicated, but as a part of your everyday world.

Happy National Coding Week!

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