Q No. 1

            Following is the memory dump of Drive Parameter Block that is retrieved using undocumented service 32 of Int 21h.  Following DPB (Drive Parameter Block) gives information about the logical drive which has FAT16 File system. 

Write the C Program that should print the 25 rows of DOS screen with different colors, i.e. your DOS screen should be displayed in such a way that every two consecutive rows should have different colors.  Following is the sample output of your program.

Assignment [Total Marks 20]

Q No. 1

Two computers are connected with each other through DB25 connectors.  If one computer has sent the data 0x240d to other computer then what value would be received from the other computer?      [10]

Assignment [Total Marks 20]

Q No. 1

Write a TSR program using keyboard interrupt, whenever the character ‘p’ is pressed, it should print your VU ID in the center of the blank screen, and when letter ‘c’ is pressed it should clear the whole screen.