What Is Interrupt Chaining

Q19: Interrupt chaining<br>A) allows CPU to defer processing

Q20: Technique used to improve I/O efficiency by

Q21: Explain the difference between a serial-port controller

Q22: A dedicated device cannot be used concurrently

Q23: In polling I/O, the main inefficiency comes

Q25: A current trend in I/O device technology

Q26: What are the three reasons that buffering

Q27: Escape (or back door) in application I/O

Q28: Vectored IO allows one system call to

Q29: What is the purpose of a programmable