Summary
Highlights
Circuits can be a creative outlet, allowing ideas to come to life through technology. Computers represent all inputs and outputs as information, which is conveyed using on or off electrical signals, or ones and zeros.
To process and create information, computers use millions of electronic components forming circuits. A simple 'NOT' circuit takes an electrical signal (1 or 0) and flips it, outputting the opposite.
More complex circuits can combine multiple signals. An 'AND' circuit takes two signals and only outputs a 1 if both input signals are 1; otherwise, it outputs a 0.
By connecting these simple logical circuits, more complex calculations can be performed. For instance, an 'adder' circuit combines two bits to calculate their sum. Multiple adder circuits placed together can add much larger numbers, like an 8-bit adder for adding two 8-bit numbers.
Other circuits perform operations like subtraction or multiplication. While individual operations are simple enough for humans, computer circuits perform them vastly faster. Historically, circuits were large and slow, but today they are microscopic and execute billions of calculations per second because smaller circuits mean less distance for electrical signals to travel.
All modern technology, from gaming to scientific exploration, relies on the rapid processing of information by these tiny circuits. They convert binary signals into websites, videos, music, games, and even aid in decoding DNA for medical diagnostics.