Negative-acknowledge character

  • In telecommunications, a negative-acknowledge character (NAK or NACK) is a transmission control character sent by a station as a negative response to the station with which the connection has been set up.
  • In Binary Synchronous Communications protocol, the NAK is used to indicate that a transmission error was detected in the previously received block and that the receiver is ready to accept retransmission of that block.
  • In multipoint systems, the NAK is used as the not-ready reply to a poll.
  • In the ASCII code, the NAK character is 21 (decimal), or ^U (CTRL-U). EBCDIC uses 0x3D. Unicode also defines a visible representation at U+2415(␕).

    See also

  • Acknowledge character
  • References

  •  This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).

  • Nak (disambiguation)

    NAK is the negative-acknowledge character used in computers and telecommunications.

    NAK or Nak may also refer to:

  • Nak, a female yak
  • Nak, Hungary, a village in Tolna County, Hungary
  • NaK is an alloy of sodium and potassium
  • NAK (protocol message), a computer communication protocol message
  • Mae Nak Phra Khanong, a ghost of Thai folklore
    • Nak (film), an animated film based on the Thai ghost
  • Nak (film), an animated film based on the Thai ghost
  • Ningalkkum Aakaam Kodeeshwaran, a quiz show in Malayalam based on Who Wants To Be A Millionaire?
  • Nak (film)

    Nak (Thai: นาค) is a Thai animated fantasy film that was released on April 3, 2008.

    The story is based on ghosts of the folklore of Thailand, who in this movie shed their sinister reputation and are the heroes. Nak, its central character, is based on the figure of Mae Nak, a Thai female spirit that has a baby and can stretch her arms. Nak's striking fuchsia-colored hair and eyes in this movie are a departure from her alleged looks in traditional lore though. Other spirits familiar to Thai people that appear in this movie are Phi Hua Kat, Krahang, Krasue, Phi Am, Nang Tani, Nang Takian and Phi Phong.

    Ghosts from other backgrounds such as Phi Yipun, the scary woman with long, stringy black hair wearing a white gown, a well-known vengeful ghost (onryō) from Japanese horror films based on the Yotsuya Kaidan story, also have a role in the Nak movie.

    Plot

    Led by Nak and her friends, the ghosts of Thai popular tradition fight against a powerful evil spirit that threatens mankind.

    See also

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