Computers aren't alive and they can't think, so how do they know what to do? At their core, computers don’t understand changes or details like humans do; they're built to recognize binary states, which means there are only two possibilities, like on/off or 1/0.
Every task a computer performs—whether opening a file, running a program, or showing an image—comes down to a series of 1s and 0s, which can be thought of as a simple “yes” or “no.” These tiny decisions happen millions or billions of times every second, allowing computers to complete complex tasks quickly.
So how does a computer decide which choice to make? Here's the trick: they don't. All the possible decisions they could make are built right into them. That’s where transistors come in. Transistors are tiny switches inside the computer that control the flow of electricity. By switching on or off very fast, they help computers use 1s and 0s to carry out all the actions we rely on every day.
Watch the video to see how computers operate using just 1s and 0s—and how transistors make all digital technology possible.
Imagine pulling off a huge project—like an expedition to the North Pole—by asking for just a little help from a lot of people. That’s the idea behind crowdsourcing.
In today’s connected world, one person’s idea can go far with the support of thousands of strangers who share a common interest. What once required large teams or major funding can now start with a simple idea and a community willing to support it.
Thanks to the internet, reaching those people is easier than ever. Platforms and online communities make it possible to share ideas, gain feedback, and gather support from people all over the world.
Whether it’s launching a new tech product or funding a creative project, crowdsourcing makes it possible. It shows how collaboration on a large scale can turn small contributions into something much bigger.
Watch the full video to see how it works and why it matters.
Passwords have been around almost as long as computers themselves.
Before cloud apps, smartphones, or social media, early computer systems faced a simple but critical problem: how do you know who’s allowed to use a machine—and who isn’t?
As computers became more widely used, it became important to control who could access systems, files, and programs. Passwords were one of the earliest solutions to this challenge. By requiring users to enter a secret word or phrase, computer systems could verify identity and limit access to authorized individuals.
Even though technology has evolved dramatically over the years, passwords are still one of the most common ways to protect digital information. They help safeguard personal data, business systems, and online accounts from unauthorized access.
Understanding how password security works can give you a better perspective on how computers manage access—and why strong security habits still matter today.
Watch the full video to see how password security really works—and what you can do differently starting today.
