124 questions and answers in this section
Explain why some files are unrecoverable after being deleted from the trash?

Explain why some files are unrecoverable after being deleted from the trash?

When a file is deleted, the operating system removes its entry from the file system, thereby erasing the pointer that indicates its physical location on...

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Explain why do data centers pollute?

Explain why do data centers pollute?

Data centers require a considerable amount of electrical power to operate efficiently. This high energy demand is due to the need to keep thousands of...

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Explain why some USB cables bend easily while others do not?

Explain why some USB cables bend easily while others do not?

USB cables are generally made up of a combination of copper, plastic, and sometimes other materials like aluminum. The internal copper wires ensure efficient data...

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Explain why the venom of the praying mantis is so powerful?

Explain why the venom of the praying mantis is so powerful?

The venom of the praying mantis is a subtle cocktail packed with neurotoxic peptides, short yet highly effective molecules that quickly paralyze its prey. It...

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Explain why the symbol @ is used in computer science to designate an email address.

Explain why the symbol "@" is used in computer science to designate an email address.

The symbol @ is older than we think. Some trace its origins back to the Middle Ages, where it served as a commercial abbreviation for...

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Explain why our touch screens respond to our fingers?

Explain why our touch screens respond to our fingers?

There are mainly two main types of touchscreens to know: resistive screens and capacitive screens. Resistive screens work when you press on them, even with...

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Explain why a fan creates wind?

Explain why a fan creates wind?

The fan creates wind through a simple physical phenomenon: it moves the surrounding air. Its rotating blades exert a mechanical thrust on the air molecules...

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Explain why does heat affect computer performance?

Explain why does heat affect computer performance?

Electronic components, such as the processor (CPU) or the graphics card (GPU), constantly transform electrical current into data processing, which generates a lot of heat. The more...

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Explain why it is better to shut down a computer rather than leave it in sleep mode for an extended period of time?

Explain why it is better to shut down a computer rather than leave it in sleep mode for an extended period of time?

A computer in sleep mode continues to consume a small amount of energy to keep certain components like RAM or peripherals active. Even minimal, this...

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Explain why computer screens are rectangular and not round?

Explain why computer screens are rectangular and not round?

The rectangular screens we use actually come from traditions that are much older than computing itself. For a long time, people have adopted the rectangular...

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