A blockchain is like a shared notebook that everyone agrees on. Imagine your friends all write down who brought what to the party, and once they agree it’s right, no one can change it later. Each page in the notebook is called a block, and together they make up a chain. This means no one person can control everything, everyone has a copy of the notebook.
Examples
- Your friends keep a notebook that everyone agrees on to track who brought the most snacks.
- You add your name to the notebook, but no one can change it unless everyone agrees.
- If someone tries to cheat and say they brought more snacks than they did, others will notice.
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See also
- How Does a Smartphone Recognize Your Face?
- Why Do We Use Passwords for Security?
- Why Do We Use ‘Barcodes’ on Products and How Do They Work?
- How does the latest generation of brain-computer interfaces function?
- How Did the Internet Begin?
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Categories: Technology · Blockchain,Cryptocurrency,Distributed Systems