**Subject:** CS401 Questions Only 4–5 MCQs were from files; the remaining MCQs were unusual. 1. Interrupts are asynchronous. What…
- S1Interrupts are asynchronous. What does asynchronous mean?
- S2Define the use of a parallel port and its device.
- S3In the segment descriptor, define the roles of bits S, X, and B.
- S4Explain the difference between AX, EAX, and AH registers.
- T1Only 4–5 MCQs were from files; the remaining MCQs were unusual.