Quiz on Input Output on Sept 19

Which of the following is NOT an output device?

• Printer

• Monitor

• Speakers

• Keyboard

What is the primary role of Input/Output devices in a computer system?

• Execute program instructions

• Store data for long-term use

• Communicate with the CPU and memory

• Generate interrupts for error handling

Which component is responsible for coordinating I/O operations in a computer system?

• CPU

• Memory

• I/O Controller

• Operating System

What does the term "port" refer to in the context of I/O devices?

• A physical connector on a device

• A software module for data processing

• A type of interrupt generated by devices

• A memory location for I/O data

Which I/O method allows the CPU to check the status of a device periodically?

• Interrupt-driven I/O

• Memory-mapped I/O

• Polling

• Direct Memory Access (DMA)

What is the main advantage of interrupt-driven I/O?

• It simplifies device control.

• It reduces the CPU's involvement in I/O operations.

• It eliminates the need for device drivers.

• It speeds up data transfer between devices.

What is the primary purpose of a device driver?

• To physically connect devices to the computer

• To manage device power consumption

• To facilitate communication between the CPU and specific devices

• To allocate memory for I/O operations

Which I/O method involves using memory addresses for device communication?

• Polling

• Interrupt-driven I/O

• Memory-mapped I/O

• Programmed I/O

What is one limitation of programmed I/O?

• It requires a high level of CPU involvement.

• It is slower than other I/O methods.

• It cannot handle multiple devices simultaneously.

• It does not support device drivers.

Which type of I/O transfer involves the CPU moving data one word or byte at a time?

• Burst transfer

• Block transfer

• Programmed I/O

• Serial transfer