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WorksheetsQuiz on Input Output on Sept 19
Total questions: 15
Worksheet time: 8mins
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
What is the role of an I/O controller?
It manages the CPU's cache memory.
It executes I/O instructions directly.
It handles the details of I/O operations on behalf of the CPU.
It generates software interrupts for I/O.
What is the primary advantage of using DMA for I/O transfers?
It simplifies device control.
It eliminates the need for device drivers.
It speeds up data transfer without involving the CPU.
It reduces power consumption in devices.
Which is the most common protocol for device communication?
USB
Ethernet
HDMI
Bluetooth
Which I/O method is most suitable for devices that generate frequent and unpredictable interrupts?
Polling
Programmed I/O
Interrupt-driven I/O
Memory-mapped I/O
What is the significance of I/O devices in the overall system architecture?
They are the core processing units.
They determine the system clock speed.
They provide a way for the user to interact with the computer.
They replace the need for an operating system.
