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Learn about the different types and examples of police codes used in the United States, such as 10 codes, signals, incident codes, and response codes. See how codes vary by state, county, and agency, and how they are related to the California Penal Code.
File locking is a mechanism that restricts access to a file or a region of a file by allowing only one user or process to modify or delete it at a time. Learn about the interceding update problem, record locking, byte-range locking, share-access controls, and file locking in Windows and Unix-like systems.
Serial Copy Management System Records in the sub code data bits that expresses whether the media is copy allowed(00), copy once(10) or copy prohibited(11). Traitor Tracing Rather than directly preventing copying, embeds user information into files so if they are uploaded, the copyright holder could find out exactly who uploaded the file.
Learn how different countries and agencies use predefined systems to describe the priority and response assigned to calls for service. Compare the codes and methods used by emergency services in the United States, the United Kingdom, and other jurisdictions.
Ten-codes are abbreviated phrases used by public safety officials and CB radio enthusiasts to communicate quickly and clearly. Learn about the history, meaning and usage of ten-codes, such as 10-4 (understood), 10-33 (officer needs help) and 10-7 (out of service).
Copy protection is any measure to enforce copyright by preventing the reproduction of media, such as software, films, music, and games. Learn about the terminology, business rationale, technical challenges, and methods of copy protection, as well as the criticism and controversy it has faced.
Regional lockout is a digital rights management that prevents the use of a product or service outside a certain region or territory. It can be enforced by physical, technological, or unintentional means, and has various reasons and effects on multimedia, hardware, and software.
Robocopy is a freeware tool that copies files and folders with various options, such as preserving attributes, timestamps, and security. It supports SMB compression, multithreading, and resume mode, and has been part of Windows since Vista and Server 2008.