Computación Básica
Qué pasa cuando enciendes una computadora
Cómo funciona un circuito electrónico
¿Qué es un bit y qué es un byte?
Qué es un procesador (CPU) y la memoria (RAM)
¿Qué es un sistema operativo?
Todo lo que pasa tras enviar un mensaje de WhatsApp
Cómo las computadoras guardan datos
¿Cómo se organizan los archivos?
Teléfonos y sus "System on a Chip" o SOC
GPUs: Procesadores gráficos y de AI
Redes e Internet
¿Qué es un algoritmo? ¿Qué es un Lenguaje de Programación?
Direcciones IP y el protocolo de Internet
Nombres de dominio, DNS y cómo obtener un .com
Modelo Cliente/Servidor: ¿Cómo funciona un sitio web?
Sistemas Operativos y Almacenamiento
Diferencias entre Windows, Linux y MacOS
Permisos, niveles de procesos y privilegios de ejecución
Archivos: Metadatos, cabeceras y extensiones
Archivos y estructuras de datos
¿Qué son las bases de datos?
Cómo funciona un .ZIP
Cómo funciona el formato .JPG
Videos: contendores, codecs y protocolos
Introducción a Blockchain e Inteligencia Artificial
Arquitectura y funcionamiento interno de Blockchain
¿Qué es una red neuronal?
¿Cómo funcionan los LLMs?
When you press the power button on your cell phone, a complex network of electronic circuits springs into action. At that precise instant, millions of transistors, acting like tiny switches, turn on and off in perfect coordination, processing electrical signals to start the operating system. This everyday scenario clearly illustrates one of the main functions of electronic circuits: signal processing.
Now imagine you are at a concert. The singer is using a microphone that picks up his voice, but how does it reach the speakers with so much power? The answer lies in amplification. Small electrical signals from the microphone pass through electronic circuits that increase its power, making the voice audible and clear throughout the venue.
Consider also the thermostat in your room. This device uses electronic circuitry to control and regulate the temperature, turning the heating system on or off as needed. Here, the circuitry performs a control function, automatically keeping the room comfortable.
The circuitry can also store energy temporarily. When you take a flash photograph, a capacitor stores energy and then quickly releases it to illuminate the scene. In addition, they can eliminate unwanted interference, such as a filter that cleans electrical signals of noise, ensuring audio quality in a phone call.
But how does electricity flow within these circuits? Think of electricity as water in a piping system. The battery would be a pump that pushes electrons from its negative pole to the positive pole, passing through wires (pipes) and components such as light bulbs (sprinklers), which convert this energy into something useful such as light or heat.
The relationship between resistance and current flow is defined by a simple formula called Ohm's Law: I = V/R. If you visualize a water pipe, the resistance would be its width; the narrower it is, the lower the flow of water (current). This principle explains why an LED lamp consumes less energy than a traditional light bulb.
In the case of LEDs, these components need resistors to avoid receiving too much current and burning out. It is like regulating water pressure with a valve to prevent damage. Resistors ensure that LEDs operate safely, prolonging their lifetime.
Electromagnetism also plays a key role in many electronic circuits, as in electric motors. In a blender, for example, current generates magnetic fields that interact with magnets inside the motor, converting electrical energy into motion that turns the blades.
When you listen to music, speakers translate electrical signals into sound. Inside each speaker, a coil receives variable current, interacts with a magnet, and moves a cone that produces the sound waves you perceive as music.
Electronic circuitry is also essential in a turntable. A motor turns the platter, a stylus reads the information on the record, and a preamplifier boosts the signal so you can enjoy clear, accurate sound in your audio system.
Even temperature can be monitored by electronic circuits using thermistors, components whose resistance changes with temperature. These devices protect electronic devices such as your cell phone from overheating during charging.
In essence, electronic circuits facilitate and enhance many everyday activities, from communication to entertainment, demonstrating their importance and omnipresence in our daily lives.
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