While using technology every day, it is unlikely that we know everything about it. 1. MacBook machines cannot get viruses: In fact, MacBooks can still be as normal. Apple was confident that the Mac computer was not vulnerable to malicious code like Windows. However, Apple has less “breeze” after a trojan affected thousands of Mac computers in 2012. 2. Turn off the iPhone app to save battery power: There is a “lifelong advice” that turning off the app after using it will save battery power for the iPhone. In fact, that action has no effect on the battery. In 2016, when email users asked CEO Tim Cook about turning off an application that improved battery life for the iPhone, Apple’s senior vice president of software engineering answered: “No and no.” 3. Anonymous browsing makes you completely “anonymous”: If you use incognito mode on Chrome, Safari or popular browsers, it simply doesn’t track your history or log in to your account automatically. just move. Basically, this feature is only useful when you don’t want others to know what you saw when they used the computer. However, the network provider and the logged-in website still have the same information. 4. Without GPS, it is impossible to locate the phone: GPS is just one of the ways to locate it. According to Business Insider, the location of the phone can still be determined by Wi-Fi network and mobile broadcast station. Last year, Northwestern University researchers also demonstrated the ability to take positions from sensors on phones such as accelerometers and gyroscopes. 5. Facebook uses a microphone on the phone to “eavesdrop”: After many privacy-related scandals, there’s absolutely a reason for users to be skeptical about Facebook at this time. Over the years, there have been numerous rumors that Facebook “eavesdrop” users talking through microphones on phones to target advertising. However, Facebook claims this is not true. This information began to spread when many people encountered ads on Facebook with the same content as previous conversations. 6. Still plug in the charger after the battery is full of damaging the battery: We often have the habit of charging the phone overnight. This means the phone will continue to be charged after it is full. Many people think that doing so can easily damage the battery. Dominik Schulte, managing director of battery technology consulting firm Batterie Ingenieure from Germany, says plugging in a battery that is 100% full for a long time could make the battery “aging” faster. Some experts believe that overnight charging doesn’t affect this aging process too much. 7. Let your iPhone run out of power before charging: On your official support page, Apple claims you can charge your iPhone at any time without worrying about the battery. “You complete a charging cycle when you have use (discharge) an amount equal to 100% of the battery capacity – but not necessarily in the same charge “. 8. Camera with more megapixels is always better: The number of megapixels has long been a basis for many people to evaluate camera quality on smartphones. That is only partly true, and there are many other factors. More importantly megapixels also have the size of pixels (pixels), the larger the size, the higher the absorption of light. Therefore, if you just look at the number of megapixels, it will not be possible to assess the overall quality of the camera. 9. High-resolution screen is more beautiful: Like cameras, there are many factors that determine the screen quality on smartphones. Resolution is one of them, and certainly not the only factor. The quality of the screen depends very much on the background. Smartphone with OLED panels will have a deeper color and contrast than LCD regardless of low or high resolution. Some manufacturers have a few more features that make their screens better. Apple, for example, with True Tone, automatically adjusts the white balance based on the surrounding environment, which can make the iPhone screen look different from the rest. 10. Don’t use the iPad for iPhone charging: Apple claims that the iPad or Mac computer charger can charge the iPhone normally. Using high-capacity iPad or Mac chargers can also help your iPhone charge faster. However, Steve Sandler, co-founder and Technical Director of AEi Systems Electric Analysis, said using iPad / Mac chargers for iPhones can often cause batteries to fall into a “stressful” state that affects the chemicals inside. Even so, it takes a year to recognize this situation. 11. In order for a magnet to be close to erasing computer data: Technically, this information is not wrong, but you need a very, very large magnet to erase the data in the computer hard drive. Experts say that the HDD on the computer today is only affected by magnets that have strong attraction and magnetic fields, and the types of magnets attached to the refrigerator are fine. 12. Use of cancer-causing phones: Most studies so far cannot conclude the relationship between phone use and the development of cancer tumors. Many studies are still limited due to long-term implementation, changing habits of use and many studies focusing on adults rather than children.