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Replacement of a biometric device

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A laptop computer may have a biometric device in it. Such a device is usually a fingerprint scanner. Such devices are usually of a good quality and rare require replacement. If replaced with a new one, then a new fingerprint scanner may require a new device driver to operate properly with the operating system. YouTube video

Replacement of a wireless card

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Replacement of a wireless card may be needed, if that piece of hardware stopped working. Please be aware that wireless card wires are very delicate and they need to be handled with care. There alternatives of replacing a wireless card, such as getting USB W-Fi card. Getting such a card may even be a cheaper and less time consuming option. YouTube video

Different types of drives

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A drive may have a different type of connection. It is not enough just to get a replacement drive, but it is needed to get a replacement drive that is of a correct type. YouTube video

Ensure that there is no power to a computer, when work with computer components is done

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When a disk is replaced, or work is is performed with other electrical components of a computer, please ensure that this computer does not have power. Power can be dangerous to a person, who is working with electric components, as well as powered computer components can be damaged by it. YouTube video

Initializing or formatting a disk

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Disk may not have a file system in it. Before it can be used, a file system needs to be created. Please be aware that creating a file system or formatting an existing drive will erase the content in that drive, it is one way process, it is a very-very-very hard task to restore content from magnetic medium after formatting, and it may be costly procedure too, it is almost impossible to restore content from SSD drives, since such drives don't use magnetic medium. When formatted a physical disk can be split onto several virtual disks. It is done for better organization of data in that disk. YouTube video

Fact checking may take time

Fact checking may take time, because a person that does it, needs to pull and consume a lot of information about such an event. Information that is pulled needs to be from reliable sources, if such information comes from sources that often provide false or gossip information, then such sources can be disregarded. Another issue, that a person may experience, is that sources may lean to specific point of view. Then such sources will provide subjective, not objective information. YouTube video

Beyond the Silicon: 4 Surprising Truths About the Science of Computation

The Babylonian Ghost in Your Machine Long before the first transistor was etched into silicon, humanity was already grappling with the fundamental nature of information. The persistent categorical error of our age is the belief that computation began with the microchip. In reality, the ancient Babylonians’ greatest innovation was not a physical tool, but a data structure: the place-value number system. To appreciate the profundity of this, one must only look at the alternative. In the additive system of Roman numerals, representing the average distance to the moon requires a cumbersome string of symbols hundreds of characters long. Attempting to record the distance to the sun would require nearly 100,000 symbols—a single number filling a 50-page book. For the ancients, such quantities were "unspeakable"—not merely large, but impossible to manipulate or even mentally inhabit. By inventing a more efficient way to represent information, the Babylonians did not merely simplify ac...