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 Below are the options to download youtube video in HD, 4k and even 8k for free. You don't have to install any desktop application or no need to purchase any premium service. It will work for you. You just need a browser. You can access it with either laptop or mobile(andriod/Ios). Here are the options: 1. https://snapany.com/youtube 2. https://cobalt.tools/

 Below is the program to Create empty files with same names and different extensions present in a specific directory in python. Here is the code: import glob import os path = 'C:\\Users\\Test\\Documents\\2025\\August\\6 Aug\\Email\\' add_extension = ".ok" i=1 for i, filename in enumerate(glob.glob(path + '*.xml')):     new_filename = filename + add_extension     try:         with open(new_filename, 'w') as f:             pass  # No content is written, so the file remains empty         print(f"Empty file '{new_filename}' created successfully.")     except IOError as e:         print(f"Error creating file: {e}")

 Below is the Python program which will show you how to connect to MariaDB. Here is the code:  # Module Imports import mariadb import sys # Connect to MariaDB Platform try:     conn = mariadb.connect(         user="user",         password="password",         host="host",         port=port,         database="database"     ) except mariadb.Error as e:     print(f"Error connecting to MariaDB Platform: {e}")     sys.exit(1) # Get Cursor cur = conn.cursor() try:     cur.execute("show databases;")     cur.execute("use test_db;")     cur.execute("show tables;")     for table in cur:         print(table) except mariadb.Error as e:     print(f"Error: {e}") # Close Connection conn.close()

 Below is the Python program which will get file attributes or file related information. Here is the code:  import os import sys sys.path.extend(r'mention your file path here') print('Get current working directory : ', os.getcwd()) print('File name :    ', os.path.basename(__file__)) print('Directory Name:     ', os.path.dirname(__file__)) print('Absolute path of file:     ', os.path.abspath(__file__)) print('Absolute directory name: ', os.path.dirname(os.path.abspath(__file__))) # Specify the directory you want to list directory_path = os.getcwd() # List all files and folders in the directory file_list = os.listdir(directory_path) # Get full paths full_paths = [os.path.join(directory_path, file) for file in file_list] print(full_paths)

  Operating System & Applications of Mobile Computing   asic Concepts of mobile operating system? A mobile operating system ( OS ) is software that allows smartphones,  tablets  and other devices to run applications and programs. A mobile OS provides an interface between the device's hardware components and its software functions. It typically starts when a device powers on, presenting a screen with icons or tiles that show information and provide application access. Mobile operating systems also manage cellular and wireless network connectivity and phone access. Millions of people use mobile operating systems worldwide, powering a wide range of devices, from smartphones to tablets and wearable technology. These systems offer users a wide selection of features, including calling and messaging, internet and cellular data connectivity, multitasking capabilities, interactive user interfaces and access to a wide range of third-party applications and services...