Circle with a line through it
Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol).
Aug 10, 2020. Aug 04, 2020. (Renewed) Apple iMac 21.5in 2.7GHz Core i5 (ME086LL/A) All In One Desktop, 8GB Memory, 1TB Hard Drive, Mac OS X Mountain Lion 4.3 out of 5 stars 656 $774.95 $ 774. Apr 03, 2019. IMac u001a The Apple iMac is both a desktop and an all-in-one machine so the monitor, Intel processor, and other internal components are all housed in the same unit. Later models include large Retina screens up to 27 inches, an Intel multicore processor, Thunderbolt ports, and a 1TB or larger hard drive.
Question mark
Learn what to do if your Mac starts up to a question mark.
Blank (empty) screen
Learn what to do if your Mac starts up to a blank screen.
Apple logo
Learn what to do if your Mac starts up to an Apple logo or progress bar.
Globe with alert symbol
A globe with an exclamation point means that your Mac tried to start up from macOS Recovery over the Internet, but couldn't. Learn what to do if your Mac can't start up from macOS Recovery.
Lock icon
If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Enter the firmware password to continue.
System lock PIN code
Your Mac asks for a PIN code when it has been remotely locked using Find My. Enter the four-digit or six-digit passcode to continue.
Login window
At the login window, enter your user account password to log in to your Mac. If FileVault is turned on, this also unlocks your disk. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account.
Thunderbolt, USB, or FireWire symbol
A large Thunderbolt , USB , or FireWire symbol against a dark background means that your Mac is in target disk mode.
Learn more
- Learn what to do if your Mac displays a message that it restarted because of a problem.
- Learn what do do if your Mac continuously restarts.
- When starting up from Windows using Boot Camp, your Mac doesn't show an Apple logo or the other macOS screens in this article.
- OS X Mountain Lion and OS X Lion systems will have the necessary printing software already installed, or will automatically download and install software when the printer is connected or configured. Do not install software that came with the printer as it may be out of date, and do not connect the printer to your Mac yet. Follow the instructions that came with the printer to unpack, install ink or toner, and insert paper. Finally, use the instructions in this article to connect the printer to your Mac.
- Make sure the printer model is listed in Printer and scanner software, which is a comprehensive list of all printer models that have compatible software for OS X Mountain Lion and OS X Lion.
Apple Mac Pro/2 27 All-in-one (model # A1312)
Mac OS Printing/Fax (any version), OS X Lion, OS X Mountain Lion
printing in OS X Mountain Lion
Apple Imac All In One Precio
Sep 29, 2013 7:47 AM