Climate Quest Mac OS

Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by a product you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.

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If your macOS isn't up to date, you may be able to update to a later version.

Which macOS version is installed?

Title Developer/publisher Release date Genre License Mac OS versions A-10 Attack! Parsoft Interactive 1995 Flight simulator Abandonware 7.5–9.2.2. Microsoft is piloting Mac OS support for its social service AltspaceVR. The test is “intended to help us better understand the feasibility of expanding AltspaceVR to Mac OS” and you can give.

From the Apple menu  in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it.

I use a Mac computer for most of my climate research, since the Mac OS X operating system provides me computational foundation I need to develop and run planetary climate models. I am not a fanatic follower of Apple and I will use Windows machines when the task demands it, e.g. CAD design on Solidworks or mapping on ArcGIS.

What is the latest macOS version?

These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Big Sur. As updates that change the macOS version number become available, this article will be updated to show the latest version of that macOS.

If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar and Photos.

Climate Quest Mac OS
macOSLatest version
macOS Big Sur11.2.3
macOS Catalina
10.15.7
macOS Mojave10.14.6
macOS High Sierra10.13.6
macOS Sierra10.12.6
OS X El Capitan10.11.6
OS X Yosemite10.10.5
OS X Mavericks10.9.5
OS X Mountain Lion10.8.5
OS X Lion10.7.5
Mac OS X Snow Leopard10.6.8
Mac OS X Leopard10.5.8
Mac OS X Tiger10.4.11
Mac OS X Panther10.3.9
Mac OS X Jaguar10.2.8
Mac OS X Puma10.1.5
Mac OS X Cheetah10.0.4

Host On Demand (HOD) is the recommended terminal session application for Mac OS X users. IBM recommends using the Safari browser for HOD. The instructions and examples on this page show screen shots from Safari 2.0.4, which is current with Mac OS X 10.4.9. If you use another version of Safari, or another browser, the screens you see may look different from the ones shown here. HOD uses Java applets and requires that Java already be installed on your computer. Java is installed by default on the Mac with OS X, but if for some reason it is not installed, you can get more information from Oracle.

NOTE: To connect to HOD you will need to be on the two factor VPN.

Installing Mac HOD

Begin installation by going to the HOD web page at www.bu.edu/uis_web3270/.
(Note the underscore character (“_”) between “uis” and “web” in the address.)

The Java applets will download in the background and you will see this window in your browser during the download.

When the applets have finished downloading, you will see this window. You can save this page as a bookmark.

Connecting to a UISA Mainframe Session

For a typical UIS (Galaxy) session, double-click the UISA 3270-2 icon.


The first time you connect to UISA with HOD you will get a window asking you to accept a “certificate.” This is a security feature and ensures that the session you are connecting to is in fact a secure session on UISA.

Check to see that the applet was signed by “International Business Machines Corporation,” and authenticated by “Thawte Consulting cc.” Click the Show Certificate button. The window will expand to show more details.

Check the box labled Always trust these certificates. Then click the Trust button.

You will get the familar UIS login screen.

Once you are connected, you can log in with your UserID and password

You can also customize the appearance of your terminal session. Go to the Customizing Your Terminal Session page for instructions.

Climate Quest Mac OS

You can create an alias on your desktop or in the System Dock to open a UISA terminal or FTP session. Go to Creating a Desktop Alias for instructions.

HOD FTP on the Mac

There are two icons for FTP sessions. One (UISA FTP) is for connecting to the UISA mainframe with a secure session, and the other (Non-UISA FTP) is for connecting to any other FTP hosts that you may use.

Setting FTP Properties

Before connecting with either icon, you will want to adjust one setting in the FTP properties. While pressing the Control key, click on the UISA FTP icon. Select Properties from the menu that drops down, and you will get this window.

In the menu list at the left of the window, click on Logon. You will get this window.

On the right side of this window, in the space labeled Local Home Directory, replace “C:/” with “/” (forward slash character). This will position the local home directory to the root level of your hard disk. Click OK.

Connecting to FTP Host

Double-click on the UISA FTP icon. In the login window, type your 6-character UIS user ID in the User ID box. In the Password box, type your UIS password, followed by a colon (“:”), followed by the current 6-digit SecurID number. Click OK.

If you did not set the properties as explained above, you will get this error when you connect, because the HOD FTP client assumes that you are using Windows, and doesn’t know that Mac OS X doesn’t have a c: drive. Just click the OK button.

When you have connected you will see a window that looks like this:

On the left is a directory listing of the root level of your Mac hard disk. You will have to navigate to the appropriate location of the folder you want to upload from or download to. Most likely you will start by double-clicking on the folder labeled Users and drilling down from there.

On the right is a listing of files in your default directory, which is named the same as your UISA user ID.

Mac Os Versions

Additional FTP Information

For more information on how to use the HOD FTP function, go to the FTP Main Screen section on the Using HOD for FTP page. (This link sends you to the Windows HOD documentation, but, once you have connected to the host, the HOD application works the same on both Windows and Mac systems.)

Creating a Desktop Alias

You can save an alias on your desktop or in the System Dock to simplify connecting to a UISA mainframe or FTP session.

Begin by opening the HOD main page. Right-click on the UIS-3270-2 icon. Select Set Up Bookmark (if you have a one-button mouse, hold down the Control key as you click on the icon.)

Click Run in a separate window.

Click OK.

Mac Os Catalina

This will leave a session window open. Close it and you will have a mostly-blank window with a single button that says, “Start Session: UISA 3270-2.”

At this point you can save a bookmark using the Bookmarks/Add Bookmark menu item. You can also save an alias to your desktop by using the File/Save As menu item.

Climate Quest Mac Os 11

Once you have saved an alias on the desktop, you can drag it onto the System Dock.