One of the most basic way of driving a computer, whether virtual or physical, remote or local, is using the command line. The software you use to access your computer's command line is called terminal software.
Some Operating Systems have a terminal included, while for others you need to install an additional app.
That said, we realise that some of our users may need some pointers to help them get started.
If you use a Mac or a Linux machine, you should have Terminal available.
If you use Windows, you can install Windows Terminal or Powershell should be available.
For Windows users, another alternative is to enable WSL and install a Linux distribution from the Microsoft Store.