No, your terminal emulator needs to send line at a time.
The Arduino IDE collects the line in the PC as you type it. When you hit send it sends the characters with no delay between characters. By default it does not send a new line so I just wait for no characters available for 10 ms.
I first waited for a new line but you never see one.
I made QuickStart work with the Arduino defaults so it would be easy for new users.
What are you using for a terminal?