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  2. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    The abacus is still manufactured in Japan even with the proliferation, practicality, and affordability of pocket electronic calculators. The use of the soroban is still taught in Japanese primary schools as part of mathematics, primarily as an aid to faster mental calculation. Using visual imagery can complete a calculation as quickly as a ...

  3. Character Generator Protocol - Wikipedia

    en.wikipedia.org/wiki/Character_Generator_Protocol

    It is intended for testing, debugging, and measurement purposes. The protocol is rarely used, as its design flaws allow for ready misuse. [1] A host may connect to a server that supports the Character Generator Protocol on either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) port number 19. Upon opening a TCP connection ...

  4. Archaea - Wikipedia

    en.wikipedia.org/wiki/Archaea

    The Thermoproteota also use the reverse Krebs cycle while the "Euryarchaeota" also use the reductive acetyl-CoA pathway. [144] Carbon fixation is powered by inorganic energy sources. No known archaea carry out photosynthesis [ 145 ] ( Halobacterium is the only known phototroph archeon but it uses an alternative process to photosynthesis).

  5. SOCKS - Wikipedia

    en.wikipedia.org/wiki/SOCKS

    Dante is a circuit-level SOCKS server that can be used to provide convenient and secure network connectivity, requiring only the host Dante runs on to have external network connectivity. [ 19 ] HevSocks5Server is a high-performance and low-overhead SOCKS server for Unix (Linux/BSD/macOS).

  6. Botnet - Wikipedia

    en.wikipedia.org/wiki/Botnet

    Telnet botnets use a simple C&C botnet protocol in which bots connect to the main command server to host the botnet. Bots are added to the botnet by using a scanning script , which runs on an external server and scans IP ranges for telnet and SSH server default logins.

  7. ANSI art - Wikipedia

    en.wikipedia.org/wiki/ANSI_art

    Example of long-form ANSI artwork. ANSI art is a computer art form that was widely used at one time on bulletin board systems.It is similar to ASCII art, but constructed from a larger set of 256 letters, numbers, and symbols — all codes found in IBM code page 437, often referred to as extended ASCII and used in MS-DOS and Unix [1] environments.

  8. List of current ships of the United States Navy - Wikipedia

    en.wikipedia.org/wiki/List_of_current_ships_of...

    USS George Washington Carrier Strike Group underway in the Atlantic USS Constitution under sail for the first time in 116 years on 21 July 1997 The United States Navy has approximately 470 ships in both active service and the reserve fleet; of these approximately 50 ships are proposed or scheduled for retirement by 2028, while approximately 90 new ships are in either the planning and ordering ...

  9. List of bulletin board systems - Wikipedia

    en.wikipedia.org/wiki/List_of_bulletin_board_systems

    ISCABBS – largest worldwide BBS, formerly located at the University of Iowa, and still both running and active as of 2024. MindVox – famous New York based BBS and internet service provider founded by members of Legion of Doom; Monochrome BBS – BBS based in the UK, founded in 1990 and still running 2023