The ASCII character set was developed in 1963 by the American Standards Association (now known as ANSI). It was officially published as a standard in 1963 and became widely adopted for computer communication and text representation.

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Plain text is a simple format for storing written information using only basic characters like letters, numbers, and punctuation marks, without any formatting like bold, colors, or special fonts. It is one of the most basic and universal ways to save and share text files.

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Randomness in cryptography ensures that encrypted messages cannot be predicted or reproduced the same way twice, making it extremely difficult for attackers to crack codes or forge security keys. Without randomness, hackers could use patterns to break encryption.

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A sound card is built into a computer's motherboard and handles basic audio, while an audio interface is an external device that connects to your computer and provides professional-quality audio recording and playback. Audio interfaces are designed for musicians and content creators who need higher quality and more control.

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Compromised default cryptographic keys allow attackers to decrypt sensitive data, forge digital signatures, and impersonate systems or users. This creates widespread security breaches because default keys are often publicly known or easily obtained.

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