Yes there are ways. Type CNTRL+ALT+F1 (to F6) to get to virtual consoles 1 (to 6). If you want to go back to KDE gui, type CNTRL+ALT+F7 (or F8).
Also within KDE, you can have an xterm or shell, by clicking on the bottom toolbar for the terminal program. It will also appear there in the KDE submenus.