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 10.10 can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard. MacBook Mac OS X 10.11, El Capitan 2009 Released, MacBook Mac OS X 10.6, Snow Leopard 2009 Released, Mac OS X 10.10, Yosemite MacBook Pro 2009 Released, MacBook Pro Mac OS X 10.11, El Capitan 2009 Released, Apple MacBook Mac OS X 10.5, Leopard Laptops, Apple MacBook Air Mac OS X 10.10, Yosemite Laptops, Apple MacBook Pro Mac OS X 10.7, Lion. Mac Pro (Mid 2010 or newer) OS X 10.11 El Capitan. Last OS X version. Release date: September 30, 2015. Hardware Requirements: 2GB RAM and 8GB free space on disk. System Integrity Protection – a security feature that protects even when the root user executes the process.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store:Mac OS X 10.6 Snow Leopard - Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mavericks if your computer meets the requirements.
Snow Leopard General Requirements
1. Mac computer with an Intel processor
2. 1GB of memory
3. 5GB of available disk space Acrobat reader xi offline installer.
4. DVD drive for installation
5. Some features require a compatible Internet service provider;
fees may apply.
6. Some features require Apple’s iCloud services; fees and
terms apply.
Clean Install of Snow Leopard
Be sure you have backed up your files because the following procedure will remove everything from the hard drive.
1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
with your computer. Insert the disc into the optical drive and restart the computer.
After the chime press and hold down the 'C' key. Release the key when you see
a small spinning gear appear below the dark gray Apple logo.
2. After the installer loads select your language and click on the Continue
button. When the menu bar appears select Disk Utility from the Utilities menu.
After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
size.) Click on the Partition tab in the DU main window. Set the number of
partitions to one (1) from the Partitions drop down menu, click on Options button
and select GUID, click on OK, then set the format type to MacOS Extended
(Journaled, if supported), then click on the Apply button.
3. When the formatting has completed quit DU and return to the installer. Proceed
with the OS X installation and follow the directions included with the installer.
4. When the installation has completed your computer will Restart into the Setup
Assistant. After you finish Setup Assistant will complete the installation after which
you will be running a fresh install of OS X. You can now begin the update process
by opening Software Update and installing all recommended updates to bring your
installation current.
5. If you are planning to sell or give your computer away, then do the following:
After you reformat your hard drive and reinstall OS X, the computer restarts to a
Welcome screen and asks you to choose a country or region. If you want to leave
the Mac in an out-of-box state, don't continue with the setup of your system. Instead,
press Command-Q to shut down the Mac. When the new owner turns on the Mac,
the Setup Assistant will guide them through the setup process.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
Dec 30, 2015 4:58 PM
Mac Specs > By Year > 2009
Complete technical specifications for every Apple Mac released in 2009 are listed below. For other years, see the main By Year page. Currently Shipping Macs additionally may be of interest.
To view each Mac released from 1984 to the present on a dynamic, interactive timeline, you also may find EveryMac.com's Ultimate Mac Timeline useful.
For iPod, iPhone and iPad models, Everyi.com offers a separate By Year section as well as the Ultimate iTimeline.
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Click on the triangle to the left of a system to open 'Quick Specs' -- identifiers and basic configuration details -- and click on the name or image for complete specifications. You also can lookup a Mac by its serial number and other identifiers.
Asterisks indicate that important details are provided on the applicable specs page.
1Apple MacProcessor TypeiMac 20-Inch 'Core 2 Duo' 2.66 (Early 2009)2.66 GHz Core 2 Duo (E8135)
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2009 Mac Os X 10.10
2009 Mac Os X 10.8![]() 2009 Imac Os X
<< Apple Systems & Mac Clones By Year (Main) | Also see: Apple Specs (Main)
2009 Mac Mini OsMac Os X 2009
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