On Wednesday, Alphabet Inc’s Google and other security researchers disclosed two major chip flaws, one called Meltdown affecting only Intel Corp chips and one called Spectre affecting nearly all computer chips made in the last decade. The news sparked a sell-off in Intel’s stock as investors tried to gauge the costs to the chipmaker.
In a statement on its website, Apple said all Mac and iOS devices are affected by both Meltdown and Spectre. But the most recent operating system updates for Mac computers, Apple TVs, iPhones and iPads protect users against the Meltdown attack and do not slow down the devices, it added, and Meltdown does not affect the Apple Watch.
Macs and iOS devices are vulnerable to Spectre attacks through code that can run in web browsers. Apple said it would issue a patch to its Safari web browser for those devices “in the coming days.”
For the people who have Apple laptop.How to maintain your Apple laptop battery?
Here are some simple tips for Apple MacBook battery maintenance:
Screen brightness
- When we use a MacBook laptop outside, due to the use of the battery, then you can properly adjust the screen brightness down. Because the screen is very power-hungry. If you lower the brightness, you can save power, let the laptop to use longer.
- The function keys F1 and F2 on the keyboard adjust the brightness of the screen, and you can adjust it manually to make the brightness lower.
- In the system default, the laptop automatically adjusts the screen brightness according to the ambient light, of course, we can also set it to manual mode. Open the "Monitor" option in System Preferences.
- Then in the display settings, turn off the "automatically adjust the brightness" option.
Energy saving setting
- Through the energy-saving Mac system settings, you can let the system automatically save a lot of energy consumption, such as how many minutes without use of computer, it will automatically turn off the screen.
- In the system preferences, click on the "Energy Saver" option in the energy-saving settings for the battery window, you can set the screen off time, whether to turn off the hard drive, and automatically use the battery to dim the screen.
Operating temperature
- Laptop Battery temperature is particularly sensitive, it has a relatively ideal operating temperature, once the temperature is too high will reduce the battery life. If the battery temperature exceeds 35 ° C, it will cause permanent damage to the battery, that is, to reduce the capacity of the battery, such as the original can hold 1 liters of water, and now can only be installed in half a liter of water.
- Battery temperature overheating will be harmful to the battery, of course, the temperature is too low nor does it work. When the temperature you play 10 ° C, the available capacity of the battery will be reduced, that is, after a full charge, the use of time without the original length. However, the temperature is too low will not permanently damage the battery 10 million, as long as the temperature returned to normal, its capacity can be returned to normal.
- So, if you are using a MacBook laptop when the ambient temperature is high, then it is recommended not to charge the Mac. Because the battery charging, the temperature will increase, coupled with the high ambient temperature, the battery temperature will be exceeded.
Regular charge and discharge
- Apple MacBook notebook built-in lithium-ion polymer battery, we need to keep the battery inside it fluidity, so as to extend the battery life. If you are often on a business trip, you will often charge the MacBook, there is no problem. For example, you can use the battery when the company goes to work and use the power to charge it when you get home.
- If you are always using at home, under normal circumstances we will plug the battery, so that you can not use the battery, resulting in the battery can not be normal charge and discharge. If you are in such a situation, it is advisable to charge and discharge the MacBook at least once a month.
Turn off the device
- There are many devices on MacBook laptops, such as optical drives, wireless, Bluetooth and so on. When we are using the battery, if you do not have Bluetooth or wireless, you can turn them off. Because some devices do not use them, they consume power.
- For early MacBook notebooks with a CD-ROM drive, it is recommended that you remove the CD-ROM from your CD-ROM drive when using it.
Keep the system up-to-date
- Apple at regular intervals on the Mac system will be upgraded, during which there are some updates on the power management optimization
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