App & OS Download Instructions
Step by Step Instructions for downloading Calculator Software Applications (Apps) and Operating Systems (OS) onto TI Graphing Calculators.
1. To download Apps you need the latest Operating System (OS) version for your calculator.
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To check which OS is on your calculator, follow these instructions:
For a TI-73 Explorer™, TI-83 Plus Family or TI-84 Plus Family:
1. Turn on your calculator.
2. Press 2nd MEM.
3. Press 1 or ENTER.
4. Check for latest OS version number.
For a TI-89, TI-89 Titanium, TI-92 Plus or Voyage™ 200:
1. Turn on your calculator.
2. From the home screen of the calculator, press F1. Scroll to About.
3. Press Enter.
4. Check for latest OS version number.
2. Next, you'll need TI Connect™ Software.
This free software makes it possible not only to transfer your Apps to your TI calculator, but will also capture screen images to use in presentations, manage your programs, download OS upgrades, and more. Don't have it yet?
TI Connect Download and Installation Instructions3. Connect your calculator to your computer
After installing TI Connect, you'll need a TI Connectivity Cable to make the physical connection from computer to calculator. The TI Connectivity Cable is a Standard A to Mini-B USB Cable for the TI-84 Plus, TI-84 Plus Silver Edition and TI-89 Titanium or a Silver USB Cable for Windows® /Mac® for the TI-73 Explorer™, TI-83, TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, TI-84 Plus Silver Edition, TI-86, TI-89, TI-89 Titanium, TI-92, TI-92 Plus, and Voyage™ 200.
Learn More about TI-Connectivity Cables4. Got everything in place now to get your Apps? Follow these directions to Download Apps.
A. Go to the page for the App you would like to download. Check out this latest App listing for all Flash-based TI Graphing Calculators.
B. Select Download or Buy/Purchase button next to your calculator model.
Download
If you have the Download option, you will be taken to the download center to retrieve your free or preloaded App. Just follow the link and save the App file on your desktop. If necessary, download TI Connect™ and/or upgrade your calculator's OS.
Preloaded
If you have the Download option and the page indicates that the App is 'Preloaded' on your calculator, you just have to register your calculator to receive this App for Free!
Once you register your Calculator, you can select My Collection in the Download Center to Retrieve all the Preloaded Free Apps for your Calculator. You will be prompted to Sign In to View 'My Collection.'
Buy/Purchase
If the App requires a purchase, just follow the purchase link to the TI Online Store to buy the App. After your transaction is complete, select 'My Pick Up Window' to retrieve your App from the 'My Collection' tab.
C. Installing Apps on your calculator
Connect your calculator to your computer using a TI Connectivity cable. Browse for the location of the App file(s) that you saved.
For TI Connect for Windows® Users:
Drag and drop the App file(s) onto the TI Connect icon
For TI Connect for Macintosh® Users:
Launch TI Connect for Macintosh
On the menu bar, select 'Connection' and then select your calculator mode.
Select the port to which the TI Connectivity cable is connected and click 'Connect' (A device window will open.)
Drag and drop the App file(s) into the open device window
For TI Connect for Mac OS X Users:
Launch TI Device Explorer™ [A device window will open listing the connected calculator(s)]
Drag and drop the App file(s) on the name of the calculator upon which you would like the App file(s) installed
You will notice the file(s) being transferred
D. Press the Apps button on your calculator - and give it a whirl!
How many Apps can you download?
That depends on which calculator you have and which App titles you choose.
Your TI-73 Explorer™, TI-83 Plus, TI-84 Plus or TI-84 Plus Silver Edition calculator has 'App spaces' that are chunks of memory into which you can load Apps. Some Apps take up only one space and other Apps take up to four. See how many App spaces your calculator has:
Download for windows installer. TI-73 Explorer - 12 App spaces
TI-83 Plus - 10 App spaces
TI-84 Plus - 30 App spaces
TI-84 Plus Silver Edition - 94 App spaces
The TI-89, TI-89 Titanium, TI-92 Plus, and Voyage™ 200 do not use App spaces, but do store Apps in Flash memory. The TI-89 and TI-92 Plus each have 702K of Flash Memory and the TI-89 Titanium and the Voyage 200 each have 2.7MB of Flash Memory.
So, you've decided to download an older version of Mac OS X. There are many reasons that could point you to this radical decision. To begin with, some of your apps may not be working properly (or simply crash) on newer operating systems. Also, you may have noticed your Mac's performance went down right after the last update. Finally, if you want to run a parallel copy of Mac OS X on a virtual machine, you too will need a working installation file of an older Mac OS X. Further down we'll explain where to get one and what problems you may face down the road.
A list of all Mac OS X versions
We'll be repeatedly referring to these Apple OS versions below, so it's good to know the basic macOS timeline.
Cheetah 10.0 | Puma 10.1 | Jaguar 10.2 |
Panther 10.3 | Tiger 10.4 | Leopard 10.5 |
Snow Leopard 10.6 | Lion 10.7 | Mountain Lion 10.8 |
Mavericks 10.9 | Yosemite 10.10 | El Capitan 10.11 |
Sierra 10.12 | High Sierra 10.13 | Mojave 10.14 |
Catalina 10.15 |
STEP 1. Prepare your Mac for installation
Given your Mac isn't new and is filled with data, you will probably need enough free space on your Mac. This includes not just space for the OS itself but also space for other applications and your user data. One more argument is that the free space on your disk translates into virtual memory so your apps have 'fuel' to operate on. The chart below tells you how much free space is needed.
Note, that it is recommended that you install OS on a clean drive. Next, you will need enough disk space available, for example, to create Recovery Partition. Here are some ideas to free up space on your drive:
- Uninstall large unused apps
- Empty Trash Bin and Downloads
- Locate the biggest files on your computer:
Go to Finder > All My Files > Arrange by size
Then you can move your space hoggers onto an external drive or a cloud storage.
If you aren't comfortable with cleaning the Mac manually, there are some nice automatic 'room cleaners'. Our favorite is CleanMyMac as it's most simple to use of all. It deletes system junk, old broken apps, and the rest of hidden junk on your drive.
Download CleanMyMac for OS 10.4 - 10.8 (free version)
Download CleanMyMac for OS 10.9 (free version)
Download CleanMyMac for OS 10.10 - 10.14 (free version)
STEP 2. Get a copy of Mac OS X download
Download Application Pc
Normally, it is assumed that updating OS is a one-way road. That's why going back to a past Apple OS version is problematic. The main challenge is to download the OS installation file itself, because your Mac may already be running a newer version. If you succeed in downloading the OS installation, your next step is to create a bootable USB or DVD and then reinstall the OS on your computer.
How to download older Mac OS X versions via the App Store
If you once had purchased an old version of Mac OS X from the App Store, open it and go to the Purchased tab. There you'll find all the installers you can download. Windows 10 os iso file free download. However, it doesn't always work that way. The purchased section lists only those operating systems that you had downloaded in the past. But here is the path to check it:
- Click the App Store icon.
- Click Purchases in the top menu.
- Scroll down to find the preferred OS X version.
- Click Download.
This method allows you to download Mavericks and Yosemite by logging with your Apple ID — only if you previously downloaded them from the Mac App Store.
Without App Store: Download Mac OS version as Apple Developer
If you are signed with an Apple Developer account, you can get access to products that are no longer listed on the App Store. If you desperately need a lower OS X version build, consider creating a new Developer account among other options. The membership cost is $99/year and provides a bunch of perks unavailable to ordinary users.
Nevertheless, keep in mind that if you visit developer.apple.com/downloads, you can only find 10.3-10.6 OS X operating systems there. Newer versions are not available because starting Mac OS X Snow Leopard 10.7, the App Store has become the only source of updating Apple OS versions.
Purchase an older version of Mac operating system
You can purchase a boxed or email version of past Mac OS X directly from Apple. Both will cost you around $20. For the reason of being rather antiquated, Snow Leopard and earlier Apple versions can only be installed from DVD.
Buy a boxed edition of Snow Leopard 10.6
Get an email copy of Lion 10.7
Get an email copy of Mountain Lion 10.8
The email edition comes with a special download code you can use for the Mac App Store. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it.
How to get macOS El Capitan download
If you are wondering if you can run El Capitan on an older Mac, rejoice as it's possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take:
1. Install Snow Leopard from install DVD.
2. Update to 10.6.8 using Software Update.
3. Download El Capitan here.
'I can't download an old version of Mac OS X'
If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. For instance, if your MacBook was released in 2014, don't expect it to run any OS released prior of that time, because older Apple OS versions simply do not include hardware drivers for your Mac.
But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac (or virtual machine) running that operating system. For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion. Then you will need to prepare an external drive to download the installation file using OS X Utilities.
After you've completed the download, the installer should launch automatically, but you can click Cancel and copy the file you need. Below is the detailed instruction how to do it.
STEP 3. Install older OS X onto an external drive
The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks.
- Start your Mac holding down Command + R.
- Prepare a clean external drive (at least 10 GB of storage).
- Within OS X Utilities, choose Reinstall OS X.
- Select external drive as a source.
- Enter your Apple ID.
Now the OS should start downloading automatically onto the external drive. After the download is complete, your Mac will prompt you to do a restart, but at this point, you should completely shut it down. Now that the installation file is 'captured' onto your external drive, you can reinstall the OS, this time running the file on your Mac.
- Boot your Mac from your standard drive.
- Connect the external drive.
- Go to external drive > OS X Install Data.
Locate InstallESD.dmg disk image file — this is the file you need to reinstall Lion OS X. The same steps are valid for Mountain Lion and Mavericks.
How to downgrade a Mac running later macOS versions
If your Mac runs macOS Sierra 10.12 or macOS High Sierra 10.13, it is possible to revert it to the previous system if you are not satisfied with the experience. You can do it either with Time Machine or by creating a bootable USB or external drive.
Instruction to downgrade from macOS Sierra
Instruction to downgrade from macOS High Sierra
Instruction to downgrade from macOS Mojave
Instruction to downgrade from macOS Catalina
Before you do it, the best advice is to back your Mac up so your most important files stay intact. In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers. The easiest way to do it is to run CleanMyMac X on your machine (download it for free here).
Visit your local Apple Store to download older OS X version
If none of the options to get older OS X worked, pay a visit to nearest local Apple Store. They should have image installations going back to OS Leopard and earlier. You can also ask their assistance to create a bootable USB drive with the installation file. So here you are. We hope this article has helped you to download an old version of Mac OS X. Below are a few more links you may find interesting.