Soluții

How to Update Your Raspberry Pi to the Latest Raspbian OS

Released in June 2017, Raspbian Stretch has had several incremental updates since, with standard updates such as improved Bluetooth and account security being enhanced with a first-boot setup wizard, and a new app store.

Raspbian itself comes with a bunch of bundled tools, from the Chromium browser (although this won’t work on the Raspberry Pi 1) to a number of useful programming-based applications and utilities. There’s also Claws Mail, the LibreOffice suite, and not to mention Minecraft PE!

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How to Remap Your Mac’s Function Keys and Do Anything You Want

Are there any function keys on your Mac’s keyboard that seem useless to you? You can reprogram them to be more useful!

For example, you can remap the Mission Control key to take a screenshot instead of revealing active apps. Or how about using the Launchpad key to bring up the emoji viewer, or a menu bar calendar of your choice?

Such changes are easy to make, as we’ll see below. But first, let’s take a closer look at function key behavior itself.

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How to Do an SMC and PRAM/NVRAM Reset on Your Mac

Sometimes your Mac might act strangely for no apparent reason: lights won’t work correctly, volume settings are messed up, the display resolution will change, or maybe your Mac won’t boot at all.

You can solve some problems by closing all your apps and trying to restart the computer. Sometimes, though, you’ll need to reset the SMC, and PRAM or NVRAM. Let’s take a look at how to do each of them.

What Is the SMC in a Mac?

The system management controller—or SMC—is a chip in Intel-based Macs. It’s involved in running a lot of the physical parts of the machine, including LED indicators, keyboards and other peripherals, cooling fans, and power buttons. It also plays a role in the behavior of your hard drive, how your Mac behaves in sleep mode, and the power supply.

When Should You Reset SMC?

SMC is responsible for so many functions in a Mac that it’s worth resetting whenever you find your computer’s hardware acting in unexpected ways. Here’s a list of the main symptoms that you need to reset the SMC:

  • The battery or status lights behave strangely
  • The keyboard backlight doesn’t work properly
  • Your MacBook doesn’t turn on when you open it
  • The power adapter light doesn’t reflect what it’s doing
  • The fan is running at an abnormally high rate, especially under low load
  • The trackpad doesn’t work
  • Your computer won’t connect to Wi-Fi
  • Target display mode switches on or off unexpectedly
  • App icons bounce for an extended period of time when opening
  • Your computer runs slowly, even under low CPU load
  • Your computer shuts down slowly

Resetting the SMC is also one of the recommended solutions for when your Mac won’t boot.

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Windows 10 – Your device is at risk

Mesajul cu roșu de mai sus este o informatie tipică în windows 10, daca sistemul tău de operare are nevoie de update-uri, și cea mai uzuală soluție este să verifici și să instalezi toate update-urile disponibile. Dar, în anumite cazuri, mesajul de mai sus este afișat, daca Windows nu poate updata sistemul tău de operare dintr-un anume motiv.

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