Disk Operating System (DOS) Question: Download Questions PDF
.....is the first program run on a computer when the computer boots up.
a. System software
b. Operating system
c. System operations
d. None
![DOS (Disk Operating System) Interview Answer DOS (Disk Operating System) Interview Question](https://globalguideline.com/public/images/interview/19.png)
Answer:
b. Operating system
Download DOS (Disk Operating System) Interview Questions And Answers
PDF