To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
It w o u l d b e h e l p fu l to kn o w w h e th e r yo u w a n t to yo u r M a c OS, se t u p a ( ch o o se w h i ch syste m d u r i n g sta r tu p ), o r i n sta l l U b u n tu i n to th e Vi r tu a l B o x yo u d o w n l o a d e d. Th e p r o ce sse s a r e ve r y d i ffe r e n t. Unlike its predecessor, macOS is a UNIX operating system built on technology that had been developed at NeXT through the second half of the 1980s and up until Apple purchased the company in early 1997. The operating system was first released in 1999 as Mac OS X Server 1.0, followed in March 2001 by a client version (Mac OS X v10.0 'Cheetah'). This works for all extended characters based on A, C, E, I, L, N, O, S, U, Y, and Z.Another method is through key stroke commands. Use the following methods to insert special characters in.
Check compatibility
If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that it's too old to be opened on this version of macOS, or that your Mac doesn't have enough free storage space for the installation.
To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.
Make a backup
Before installing, it's a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Download macOS
It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard
Install macOS
Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.
Learn more
You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.
In Mac OS X, to type many common diacritics and accentmarks, you can use the Option
key. For others, you mayneed to switch keyboard layouts or install additional fonts. You canuse the Keyboard Viewer with both methods to see what characters youcan currently type.
Option key combinations
This table shows the most common keystrokes for typing accentedcharacters. Keystrokes with the [letter]
placeholderrequire two sets of keypresses; first, type the Option
keycombination, and then type the letter you want to modify.
Keystroke | Character |
---|---|
Option-e [letter] | acute (e.g., á) |
Option-` [letter] | grave (e.g., è) |
Option-i [letter] | circumflex (e.g.,ô ) |
Option-u [letter] | |
Option-n [letter] | tilde (e.g., ñ ) |
Option-q | oe ligature ( œ ) |
Option-c | cedilla ( ç ) |
Option-Shift-/ (forward slash) | |
Option-1 (the number 1) | upside-downexclamation point ( ¡ ) |
Keyboard layout configuration
To configure additional keyboard layouts in Mac OS X 10.5 or later:
To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.
Make a backup
Before installing, it's a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Download macOS
It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard
Install macOS
Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.
Learn more
You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.
In Mac OS X, to type many common diacritics and accentmarks, you can use the Option
key. For others, you mayneed to switch keyboard layouts or install additional fonts. You canuse the Keyboard Viewer with both methods to see what characters youcan currently type.
Option key combinations
This table shows the most common keystrokes for typing accentedcharacters. Keystrokes with the [letter]
placeholderrequire two sets of keypresses; first, type the Option
keycombination, and then type the letter you want to modify.
Keystroke | Character |
---|---|
Option-e [letter] | acute (e.g., á) |
Option-` [letter] | grave (e.g., è) |
Option-i [letter] | circumflex (e.g.,ô ) |
Option-u [letter] | |
Option-n [letter] | tilde (e.g., ñ ) |
Option-q | oe ligature ( œ ) |
Option-c | cedilla ( ç ) |
Option-Shift-/ (forward slash) | |
Option-1 (the number 1) | upside-downexclamation point ( ¡ ) |
Keyboard layout configuration
To configure additional keyboard layouts in Mac OS X 10.5 or later:
- From the Apple menu, select System Preferences...
- In System Preferences, from the View menu, select Language & Text (10.6 and later) or International (10.5).
- From the Input Sources tab (10.6 and later) or Input Menutab (10.5), in the list of languages and keyboard layouts, check theones you would like to use. If you would like to use the KeyboardViewer, check it near the top of the list. For details, see Using the Keyboard Viewer.
- Close System Preferences.
Once you have chosen other keyboard layouts, a flag will appear on theright side of the menu bar representing the current layout. To use adifferent layout, click the flag, and then select it from thepull-down menu. In 10.6 and later, if you click Keyboard & CharacterViewer, but no additional languages, it will display theCharacter Viewer icon instead of a flag. Nsa intern mac os.
Using the Keyboard Viewer
You can use the Keyboard Viewer to see how modifier keys and differentkeyboard layouts affect the characters you type:
- From the Apple menu, select System Preferences...
- In System Preferences, from the View menu, selectLanguage & Text (10.6 and later) or International (10.5).
- Select the Input Sources tab (10.6 and later) or InputMenu tab (10.5), and then check Keyboard & CharacterViewer (10.6 and later) or Keyboard Viewer (10.5). A flag or theCharacter Viewer icon should appear in the menu bar in theupper right corner of your screen. The type of flag you see depends onthe default language you select.
- Click the new icon in the menu bar, and from the menu that dropsdown, select Show Keyboard Viewer.
D U E L Mac Os Catalina
The Keyboard Viewer
windowcontains a virtual keyboard that shows the characters associated withdifferent keys. Feederrl mac os. Here, you can see what characters are created when youhold down modifier keys like Option
, Shift
,and Command
.
D U E L Mac Os X
Many fonts in OS X contain special characters for additionaldiacritics. To access these special characters:
D U E L Mac Os 11
- Within the application you are currently using, open the Fontpanel (usually from a Show Fonts option in the application'smenus).
- Click the gear widget button:
- From the menu that appears, select Characters...