I/O hardware basics in Operating Systems - Mini Project: Build & Apply

I/O Hardware Basics

📖 Scenario: You are learning about the basic components of input/output (I/O) hardware in a computer system. Understanding these components helps you see how computers communicate with the outside world.

🎯 Goal: Build a simple list of common I/O hardware devices, add a category filter, then select devices by category, and finally label the list with a descriptive title.

📋 What You'll Learn

Create a dictionary named io_devices with exact device names as keys and their categories as values.

Create a variable named filter_category to hold the category to filter devices by.

Use a dictionary comprehension named filtered_devices to select devices matching the filter_category.

Add a variable named list_title with the exact string describing the list.

💡 Why This Matters

🌍 Real World

Understanding I/O hardware categories helps in managing computer resources and troubleshooting device connections.

💼 Career

Knowledge of I/O hardware basics is essential for roles in IT support, system administration, and computer hardware maintenance.

1

Create the I/O devices dictionary

Create a dictionary called io_devices with these exact entries: 'Keyboard': 'Input', 'Monitor': 'Output', 'Printer': 'Output', 'Mouse': 'Input', 'Speaker': 'Output'.

Operating Systems

# Create the io_devices dictionary with device names and categories
# Your code here

Need a hint?

Use curly braces {} to create a dictionary with keys and values separated by colons.

2

Set the filter category

Create a variable called filter_category and set it to the string 'Input' to filter input devices.

Operating Systems

io_devices = {
    'Keyboard': 'Input',
    'Monitor': 'Output',
    'Printer': 'Output',
    'Mouse': 'Input',
    'Speaker': 'Output'
}
# Set filter_category to 'Input'
# Your code here

Need a hint?

Assign the string 'Input' to the variable filter_category.

3

Filter devices by category

Use a dictionary comprehension to create a new dictionary called filtered_devices that includes only the devices from io_devices where the category matches filter_category. Use device and category as the loop variables.

Operating Systems

io_devices = {
    'Keyboard': 'Input',
    'Monitor': 'Output',
    'Printer': 'Output',
    'Mouse': 'Input',
    'Speaker': 'Output'
}
filter_category = 'Input'
# Create filtered_devices dictionary with devices matching filter_category
# Your code here

Need a hint?

Use {device: category for device, category in io_devices.items() if category == filter_category} to filter the dictionary.

4

Add a descriptive title

Create a variable called list_title and set it to the string 'List of Input Devices' to describe the filtered list.

Operating Systems

io_devices = {
    'Keyboard': 'Input',
    'Monitor': 'Output',
    'Printer': 'Output',
    'Mouse': 'Input',
    'Speaker': 'Output'
}
filter_category = 'Input'
filtered_devices = {device: category for device, category in io_devices.items() if category == filter_category}
# Set list_title to 'List of Input Devices'
# Your code here

Need a hint?

Assign the exact string 'List of Input Devices' to the variable list_title.