Question

We can only type text to give commands to the computer as in MS DOS.-Justify your answer.

Answer 1

because ms dos is prepared earlier time when people uses type writer, and that time these advance audio technology was not discovered. And ms dos is the only interface through which interaction with machines are possible.

Answer 2

We can only type text as commands to MS-DOS and not an image or video because it is a CUI, not a GUI.

CUI stands for character user interface and GUI stands for graphical user interface.

When MS-DOS was first released, GUI wasn't released and hence only text commands works with MS-DOS.