The original Apple TV ran a modified build of Mac OS X v10.4 Tiger. Apple TV Software 1.0. Apple TV software 1.0 presented the user with an interface similar to that of Front Row. Like Front Row on the Mac, it presents the user with seven options for consuming content. Movies, TV Shows, Music, Podcasts, Photos, Settings, and Sources. Mac OS, operating system (OS) developed by the American computer company Apple Inc. The OS was introduced in 1984 to run the company’s Macintosh line of personal computers (PCs). The Macintosh heralded the era of graphical user interface (GUI) systems, and it inspired Microsoft Corporation to develop its own GUI, the Windows OS.
macOS Catalina gives you more of everything you love about Mac. Experience music, TV, and podcasts in three all-new Mac apps. Enjoy your favorite iPad apps now on your Mac. Extend your workspace and expand your creativity with iPad and Apple Pencil. And discover smart new features in the apps you use every day. Now you can take everything you do above and beyond.
Check compatibility
If you're using one of these computers with OS X Mavericks or later,* you can install macOS Catalina. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier.
MacBook introduced in 2015 or later
MacBook Air introduced in 2012 or later
MacBook Pro introduced in 2012 or later
Mac mini introduced in 2012 or later
iMac introduced in 2012 or later
iMac Pro (all models)
Mac Pro introduced in 2013 or later
MacBook Air introduced in 2012 or later
MacBook Pro introduced in 2012 or later
Mac mini introduced in 2012 or later
iMac introduced in 2012 or later
iMac Pro (all models)
Mac Pro introduced in 2013 or later
* To upgrade from Lion or Mountain Lion, first upgrade to El Capitan, then upgrade to Catalina. To find your macOS version, Mac model, memory, and storage space, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Catalina, the installer will let you know. View the complete list of compatible computers.
Make a backup
Before installing any upgrade, 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.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Catalina
If you're using macOS Mojave, get macOS Catalina via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Or use this link to open the macOS Catalina page on the App Store: Get macOS Catalina. Then click the Get button or iCloud download icon.
Begin installation
Gens For Mac Os X 10.13
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it 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.
Allow installation to complete
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 both macOS and related updates to your Mac firmware. Film the raid 2 mp4.
![10.7 10.7](/uploads/1/1/9/4/119471406/181570734.png)
Stay up to date
After installing macOS Catalina, you will be notified when updates to macOS Catalina are available. You can also use Software Update to check for updates: Choose Apple menu > System Preferences, then click Software Update.
Or get macOS Catalina automatically
If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Catalina will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Catalina is ready to be installed. Click Install to get started, or dismiss the notification to install later. When you're ready to install, just open the file named Install macOS Catalina from your Applications folder.
Learn more
- If the installer shows a list of apps that are not optimized for your Mac, learn about 32-bit app compatibility, then choose whether to proceed with the installation.
- For the strongest security and latest features, upgrade to macOS Catalina. If you have hardware or software that isn't compatible with Catalina, you might be able to install an earlier macOS, such as Mojave, High Sierra, Sierra, or El Capitan.
- You can also use macOS Recovery to reinstall macOS.
Gens For Mac Os X 10.10
Mac OS X Yosemite and El Capitan have both been available to Mac users for a while now. As such, many users have updated their systems to at least one of the two versions of the OS X operating system. El Capitan has brought several new updates to OS X especially in terms of the default Apple apps. However, in terms of forensic artifacts it was fairly similar to OS X Yosemite with a few changes noted, but most of the artifacts remained the same.
Gens For Mac Os X 10.7
It has been a while since the last time we reported on our progress. During that time period we finished examining the two operating systems and compiled spreadsheets containing the artifact locations. Then we generated a final report that will be available at “Mac Forensics Report” (Link to the final report). Overall the two versions of OS X were very similar and only had a few minor differences.
The last time we update our progress we had just completed data gen and imaging of both the OS X Yosemite and El Capitan machines. We are happy to report that we finished our examination of the two images and were able to compile a list of artifact locations for both Yosemite and El Capitan. The lists contained many different artifacts ranging from application specific artifacts to system configuration files. Most of the artifacts that we located were user specific while a few were machine specific.
Once we had created the spreadsheets of the artifact locations we then compared them to determine what artifacts were different between Yosemite and El Capitan. We determined that the two versions were very similar and only a few artifacts had moved to new locations in El Capitan. However, through our analysis and comparison we were unable to locate some artifacts. We broke theses artifacts into two groups, obsolete and missing. Obsolete artifacts were determined if neither versions of the operating system had that artifact. Missing artifacts were determined if the artifact should have been generated during data gen but was still missing. In the end we created a comprehensive list of artifacts and their locations. This list can be found in our final report.
![Gens For Mac Os X Gens For Mac Os X](/uploads/1/1/9/4/119471406/782764652.jpg)
We created our final report using google docs so that we could all edit it at the same time. This led to a few problems, seeing as Microsoft Word and Google Docs do not keep the same formatting. This led us to have a few headaches further down the line. As a result, we had to type everything in Google Docs and then import it manually into Word in order to obtain the proper formatting that we were seeking. Once that was completed we then had to import all of our spreadsheets containing the artifact locations and format them to fit the theme of the final report as well. In the end we had created a nice report that looks great and has detailed information about the artifact locations for both OS X Yosemite and El Capitan.
With our final report completed we are now officially done with this project, at least for now. Our final report details specifically our methods and outcomes of our research. It goes into depth about what artifacts were determined to be new, obsolete, and what artifacts we expected to find but were unable to. Research into operating systems is never complete and further work can always be completed to enhance the available knowledge base and resources available.
Overall we determined a lot about the artifacts in both OS X Yosemite and El Capitan. We were able to overcome some of the difficulties of using virtual machines by using two separate iMacs to conduct our data gen. In general, Yosemite was very similar to the last project that we conducted at the LCDI. Almost all of the artifacts from last year’s research into Yosemite were exactly the same. The artifact locations in El Capitan were very similar to those in Yosemite. We only found a handful of artifacts in new locations and a few artifacts were unable to be located in El Capitan that we found in Yosemite. The largest change from Yosemite to El Capitan was with the mail application, and many of the artifact paths had changed. The two versions of OS X are very similar, but there is always more research to be done.
Word for mac separator line. Our team made great progress in determining the default locations for artifacts in both OS X Yosemite and El Capitan. We were able to overcome several struggles associated with using a VM that earlier research encountered, but we still missed a few key pieces of software such as Microsoft Office. Further research could be conducted into applications that we missed in our data gen. We were unable to locate a few of the artifacts that should have been generated, and as such, further research could be conducted to determine if those artifacts are obsolete or where they are located in the current versions of the OS. It is also important to stay up to date with the current versions of operating systems. They are always being updated and this research needs to be conducted every time an OS is updated.
We look forward to updating you on our future projects here at the LCDI. Please take a look at our “final report”(Link to final report) on this project to get a more in depth look at the default artifacts in OS X Yosemite and El Capitan. If you have questions or comments about the project, you can leave a comment, or contact the LCDI via Twitter @ChampForensics, or via email at [email protected].