Your Smart Home Is Running on a 51-Year-Old Scottish Invention
Alexa, Google Home, HomeKit, the smart home market is worth $150 billion. But the dream of the automated home started in a Scottish engineer's workshop in 1975.
Key Takeaways
- •X10 sent commands over existing electrical wiring, no new cables needed
- •The dream of the 'automated home' is 51 years old, not 10
- •We still haven't solved the #1 problem X10 had: getting devices from different brands to talk to each other
Root Connection
Every smart home device, from $30 smart bulbs to $3,000 robot vacuums, descends from X10, a protocol invented in 1975 that sent signals over existing electrical wiring.
Timeline
1975Scottish company Pico Electronics invents X10, home automation over power lines
1985X10 becomes the first consumer home automation system sold in RadioShack
2010Nest thermostat launches, makes smart home 'cool' for the first time
2014Amazon Echo / Alexa: voice control brings smart home mainstream
2019Matter protocol announced, industry attempt to unify smart home standards
2026Smart home market exceeds $150 billion globally
When you tell Alexa to turn off the lights, you're completing a journey that started in a Scottish electronics workshop 51 years ago.
In 1975, a company called Pico Electronics in Glenrothes, Scotland, invented X10, a protocol that sent digital commands over existing electrical wiring. Plug an X10 module into any outlet, and you could control that outlet remotely. No new wiring. No expensive installation. Just plug, play, and automate.
It was brilliant. It was also 30 years ahead of its time.
X10 hit American stores through RadioShack in the 1980s, marketed to hobbyists and early adopters. You could set timers, create scenes, and control your home from a keypad. But it was clunky, unreliable (your neighbor's garage door opener could accidentally trigger your living room lights), and decidedly un-cool.
The smart home went underground for two decades. Then, in 2010, Tony Fadell, the engineer who led the iPod team at Apple, founded Nest and launched a thermostat that was actually beautiful. For the first time, home automation wasn't embarrassing.
Amazon's Echo, launched in 2014, changed everything again. Voice control eliminated the need for apps, keypads, or any technical knowledge. 'Alexa, turn on the lights' was infinitely simpler than X10's arcane codes.
But here's the irony: the fundamental problem of the smart home is the same today as it was in 1975. Getting devices from different manufacturers to communicate reliably. X10 struggled with signal interference. In 2026, we struggle with Zigbee vs. Z-Wave vs. WiFi vs. Thread vs. Matter.
The Matter protocol, backed by Apple, Google, Amazon, and Samsung, is the latest attempt to solve this 51-year-old problem. Whether it succeeds will determine if the smart home finally fulfills the promise a Scottish company made half a century ago.
The root is in Glenrothes, Scotland, 1975. We're still growing the same tree.
X10 sent control signals over your home's existing electrical wiring, no new cables, no WiFi, just the power lines you already had
Global Smart Home Market Size ($B)
Source: Statista / Grand View Research
Enjoy This Article?
RootByte is 100% independent - no paywalls, no corporate sponsors. Your support helps fund education, therapy for special needs kids, and keeps the research going.
Support RootByte on Ko-fiHow did this make you feel?
Recommended Gear
View all →Disclosure: Some links on this page may be affiliate links. If you make a purchase through these links, we may earn a small commission at no extra cost to you. We only recommend products we genuinely believe in.
Framework Laptop 16
The modular, repairable laptop that lets you upgrade every component. The right-to-repair movement in action.
Flipper Zero
Multi-tool for pentesters and hardware hackers. RFID, NFC, infrared, GPIO - all in your pocket.
The Innovators by Walter Isaacson
The untold story of the people who created the computer, internet, and digital revolution. Essential tech history.
reMarkable 2 Paper Tablet
E-ink tablet that feels like writing on real paper. No distractions, no notifications - just thinking.
Keep Reading
Want to dig deeper? Trace any technology back to its origins.
Start Research