The Last On Board Mac OS

Like Microsoft Word by default provides a function to view Clipboard History on Mac (OS X) it is also possible to view history in many ways.If you are not understanding why we are talking about to view clipboard history on Mac (OS X), you can search App Store to see the number of applications to extend the function – many users simply need the feature.
Except MS learned from its botched OS and the result today is that Windows 10 is surprisingly pretty decent. I’ve been a Mac devotee since 1985, with a Mac Plus as my first Mac and countless machines since then. Catalina has been the most mind-numbing, fumbled, dysfunctional OS I’ve ever experienced from Apple (even worse than Mavericks).

The Last On Board Mac Os X
The Last On Board Mac Os Catalina

Apple confirms Mac to Arm with Microsoft and Adobe on board; MacOS will look more like iOS. A Mac mini-based Developer Transition Kit will enable developers to try out apps on Apple's processors.

Start up from macOS Recovery

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

Apple silicon

Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.

Intel processor

Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.

If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password.

Reinstall macOS

Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.

Follow these guidelines during installation:

If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

After installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

Other macOS installation options

When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions:

On an Intel-based Mac: If you use Shift-Option-Command-R during startup, you're offered the macOS that came with your Mac, or the closest version still available. If you use Option-Command-R during startup, in most cases you're offered the latest macOS that is compatible with your Mac. Otherwise you're offered the macOS that came with your Mac, or the closest version still available.
If the Mac logic board was just replaced, you may be offered only the latest macOS that is compatible with your Mac. If you just erased your entire startup disk, you may be offered only the macOS that came with your Mac, or the closest version still available.