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Digital electronics facts for kids

Kids Encyclopedia Facts
NRZcode
This picture shows electronic pulses in a binary form. Computers and digital devices use these pulses to "think."
ADC Symbol
An ADC device changes electric voltages into digital signals. This lets computers understand them.

Digital electronics is a special part of electronics. It uses "boolean logic" and "discrete signal electronics" to make devices work. Think of it as the language that digital gadgets speak!

Many everyday things use digital electronics. These include computers, digital cameras, digital televisions, and mobile phones. Even flash memory sticks and hard disks inside computers rely on it. Digital electronics helps these devices process information. It takes real-world signals, like sounds or pictures, and turns them into digital information. This process is called Digital signal processing.

How Digital Circuits Work

Digital electronics is all about digital circuits. These circuits use a special kind of math called Boolean logic. This logic helps them make decisions. In digital circuits, information is shown using only two values: "true" or "false."

These "true" and "false" values are represented by different electrical voltages. For example, "true" might be 0 volts, and "false" might be 5 volts. These circuits are built using tiny parts called "logic gates."

Digital circuits are very strong against "noise." Noise is like unwanted interference that can mess up signals. However, digital circuits can use a lot of energy. Digital circuits were invented in the 1900s. They are the main building blocks for all modern digital communication and computers.

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See also

Kids robot.svg In Spanish: Electrónica digital para niños

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