What type of operating system MS-DOS is? A) Command Line Interface B) Graphical User Interface C) Multitasking D) Menu Driven Interface Related MCQs: In which type of operating system time intervals to process and respond to input is very small? DOS cannot retrieve any data from the disk if a computer virus corrupts its: DOS cannot retrieve any data from the disk if a computer virus corrupts its: In computing, what does DOS stand for?