Sctom I am not computer literate so no idea what this means
OK,
0) click once on an empty screen; do not click on an icon. Instead click on empty space. The application name at the left side of the main menu bar (next to the Apple icon) should turn to "Finder."
1) double click on the drive icon at the top right of the Finder window (immediately below the Menu Bar); this opens a Finder volume that includes a folder called "Applications."
2) double click on the Applications folder icon and you will find a folder called Utilities inside the Applications folder.
3) double click on the Utilities folder icon and you will find an Apple application called "Terminal.app" (it might only show as "Terminal" depending on your Finder preferences settings.
4) double click on the Terminal.app application, and you should see an empty window, except for a short line of text at the top left corner (assuming Western keyboard). You are now running the command line tool in Unix.
5) now type "chsh -s /bin/zsh" without the double quotes. Make sure you double check what you have typed, and then hit Return on the keyboard. Make sure you have the spaces at the right places, and that "-" is the minus sign (lower cased).
5+) you may be asked to enter the password, if so, do that (remember to hit Return). If you are not the owner of the computer, get the owner to perform these steps. You may need admin privileges.
6) Terminal window should show a new line of text that has a percent sign at the end. You are now running the "zsh" shell. You could have migrated from MacOS X, and have never used Teminal.app ever. If so, you were running either the bash or the c shell.
7) Quit Terminal, and you should now be able to run the applications in the ASIStudio components.
macOS is underpinned by Unix. Terminal.app is the teletype interface to Unix. Shells are the command line interface to Unix. To learn about shells (since you claim to not be computer literate) you can read this "kindler and gentler" introduction, to get more familiar with your computer:
https://eshop.macsales.com/blog/56921-moving-from-bash-to-zsh-terminal-changes-in-macos-catalina/
Chen
