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Technology

Dispelling these myths has become a real exercise in style in “Slide Show” format for many newspapers and magazines dedicated to high-tech and technologies. They range from the extensive Telegraph survey to the recent list proposed by the German magazine “T3n”. In Italy we have the legendary Salvatore Aranzulla who has been able over the years to solve computer doubts and eradicate false myths from the mind of the average user of digital technologies.

But some beliefs persist and the list of technological myths to be debunked must always be updated. Here are the 12 technological myths that die hardest against which so far nothing has been able to divulge science and computer bloggers:

Undercover browsing: just use the private browsing mode to be invisible on the web

It’s a mistake to think that you just need to open an incognito navigation window on Chrome or Firefox to leave no traces and hide your identity online. The incognito navigation mode prevents your computer from storing the browsing session you just performed (history, cookies and temporary files of websites visited).

But this does not prevent the Internet operator, your employer, the authorities and, of course, the websites you visit, from viewing and monitoring the various browsing activities. For more information on how to surf undercover with Chrome, just ask Aranzulla of course.

Macs are immune to viruses and malware

The market share of Apple Mac Notebooks is much smaller than that of Windows computers. The dark side of strength also knows that. Viruses and trojans are therefore mainly developed for Windows devices, given the much higher number of potential victims.

Although there are anti-virus programs for Macs from Apple, the integrated firewall and the double confirmation mechanism for installing applications provide more than sufficient protection against viruses and malware.

But there is still the possibility that some malware such as the Mac Defender or the KeRanger will be able to pierce the defenses of their own Mac hiding in other applications – perhaps downloaded from official sources that you would tend to consider reliable. The message for Mac users is: caution!

Leaving your smartphone charging all night will damage the battery

Modern smartphones are so energy-intensive that they need to be charged almost every night. Most users therefore leave their mobile phone charging all night long.

But is it really harmful to the battery to keep the smartphone plugged into a power outlet once charging is complete? Well, modern lithium-ion (Li-ion) batteries are able to detect when the charging cycle is complete and block power consumption, even if still connected to the power outlet. Night-time charging therefore does not affect the health of the batteries.

A magnet is all it takes to damage a hard drive

The situation is as follows: we have placed our external hard disk near a small magnet, and we fear that in a few seconds photos, movies, documents and everything we had saved in the external memory will be erased forever.

on’t worry! Magnets can actually damage portable HDDs and erase data in a memory. However, to achieve such a result you need a high-voltage magnetic field that only an industrial machine can generate. In short, a normal magnet can not destroy a hard disk, but a mega magnet of the type used by Jesse and Walt in the final season of Breaking Bad absolutely yes.

Megapixel: the more there is, the better

Anyone who is convinced that a digital camera with 23 megapixels will automatically take fantastic photos is mistaken. The number of megapixels is just one of the factors that come into play to determine the quality of a camera. Sensor size, optics and lenses all have a greater impact on photo quality than megapixels. The smartphone cameras currently considered among the best are equipped with sensors of just 12 megapixels. More pixels in smartphone camera sensors are generally unnecessary.

The reasoning is that the larger the pixels of the sensor, the more light the camera can collect and therefore the better the quality of the photos.

CD/DVD/Blu-Ray last forever

Optical storage media for backing up data such as CDs, DVDs or Blu-Rays are believed to have an unlimited lifetime. Their supposed eternity is obviously a panzana. The average life of these media varies between 10 and 50 years. If kept with care. Optical data storage technology is not the best option in storage. Much better to use USB sticks or SSD storage systems.

BitTorrent is illegal

With BitTorrent you can exchange data with other users via a peer-to-peer network. The method is practical and quite popular. That Torrent sites are illegal in itself is fake. It all depends on the content you share via the P2P network. Disseminating and downloading audiovisual content protected by copyright, for example, is illegal. But if you want to share self-produced content, such as photos, music and the like via BitTorrent, all okey!

Better to close all apps running on an iOS device
It’s one of those things you often hear: periodically shutting down applications running in the background on multitasking iOS devices would help free up resources for other processes and increase battery life. More myth! For both iOS and Android, there are algorithms for memory and power management.

In the case of iOS devices, for example, inactive applications

are hibernated in the RAM and do not affect performance or battery life. The debate on whether to close multitasking iOS apps was however officially closed by Craig Federighi, Senior Vice President of Apple’s Software Engineering Division, who recently gave a clear and unequivocal answer on the subject: “No and no”. Dryer than that?!

Memory effect shortens rechargeable battery life

In order to extend the life of batteries in smartphones and notebooks, they must be completely discharged before each new charge, otherwise the so-called “memory effect” will arise, as a result of which the battery will no longer be able to recharge to maximum capacity.

This is one of the many myths that surround the correct use and the
maintenance of the batteries of electronic devices (smartphones, tablets, laptops, MP3 players, digital cameras and camcorders). The so-called memory effect was actually present in nickel-metalhydrate (NiMH) and nickel-cadmium (NiCd) batteries, now replaced in all laptops by lithium-ion garlic batteries, which do not suffer from this problem.

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