Terminal is the elementary OS app for entering text commands, formally known as Pantheon Terminal. For the Ubuntu terminal, use "gnome-terminal".
The Pantheon Terminal is used for entering text commands. It is the default terminal emulator for elementary OS. For the Ubuntu terminal, use gnome-terminal.
The Pantheon Terminal is written in "Vala" programming Language. Multiple terminal sessions may be organized within single terminal window as tabs. It's designed to be setup with sane defaults and little to no configuration.