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Blizzard Entertainment is an American video game developer and publisher, known for franchises like Warcraft, Diablo, StarCraft and Overwatch. Learn about its history, products, services, controversies and acquisitions from this comprehensive article.
Cryptography is the practice and study of techniques for secure communication in the presence of adversarial behavior. Learn about the core concepts, terminology, and history of cryptography, as well as its modern applications in computer science, information security, and digital media.
Debian is a community-developed operating system that runs on various platforms and architectures. It is one of the oldest and most influential Linux distributions, with a long history, a strong social contract, and many derivatives and ports.
Learn about the different types of identity documents, such as passports, national ID cards, and driver's licenses, and how they are used to prove a person's identity. Explore the history and debate of identity documents, from their origins to their current challenges and controversies.
ETCS is a train protection system designed to replace the many incompatible systems used by European railways and outside of Europe. It consists of trackside and on-board equipment that can exchange information for safely supervising train circulation. ETCS has different levels of application and performance, with Level 2 being the most common and compatible with legacy systems.
ARPANET was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. The full form of ARPANET is Advanced Research Projects Agency Network, established by the US Department of Defense in 1969 and decommissioned in 1990.