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  2. Portal 2 - Wikipedia

    en.wikipedia.org/wiki/Portal_2

    Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, Mac OS X, Linux, PlayStation 3, and Xbox 360.The digital PC version is distributed online by Valve's Steam service, while all retail editions were distributed by Electronic Arts.

  3. Blackboard system - Wikipedia

    en.wikipedia.org/wiki/Blackboard_system

    A blackboard-system application consists of three major components The software specialist modules, which are called knowledge sources (KSs).Like the human experts at a blackboard, each knowledge source provides specific expertise needed by the application.

  4. Sign (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Sign_(mathematics)

    The plus and minus symbols are used to show the sign of a number.. In mathematics, the sign of a real number is its property of being either positive, negative, or 0.Depending on local conventions, zero may be considered as having its own unique sign, having no sign, or having both positive and negative sign.

  5. Georgia high school shooting suspect was investigated in 2023 ...

    www.aol.com/news/georgia-high-school-shooting...

    A 14-year-old student suspected of gunning down four people at his Georgia high school Wednesday was previously investigated in connection with threats to carry out a school shooting, federal ...

  6. History of virtual learning environments in the 1990s - Wikipedia

    en.wikipedia.org/wiki/History_of_virtual...

    A 1990 foreign patent and a 1972 patent by Jakob Zawels (# 3,641,685) are referenced. The patent is granted in 1993. The patent is referenced in a 2000 patent filing (# 6,988,138) by representatives of BlackBoard, Inc. Murray Turoff, the guru of EIES, publishes "Computer-Mediated Communication Requirements for Group Support" (PDF).

  7. Blackboard Jungle - Wikipedia

    en.wikipedia.org/wiki/Blackboard_Jungle

    Blackboard Jungle is a 1955 American social drama film about an English teacher in an interracial inner-city school, based on the 1954 novel The Blackboard Jungle by Evan Hunter and adapted for the screen and directed by Richard Brooks.

  8. Largo High School (Maryland) - Wikipedia

    en.wikipedia.org/wiki/Largo_High_School_(Maryland)

    Operated by Prince George's County Public Schools, it serves students of grades 9 to 12. The school is operated by the Prince George's County Public Schools system. The school's athletic teams are known as the Lions. The school serves about 870 students in grades 9 through 12. The principal is Albert T. Lewis.

  9. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The £ grapheme in a selection of fonts The pound sign (£) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England.