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  2. Polarization-division multiple access - Wikipedia

    en.wikipedia.org/wiki/Polarization-division...

    Polarization-division multiple access. Polarization-division multiple access ( PDMA) is a channel access method used in some cellular networks and broadcast satellite services. Separate antennas are used in this type, each with different polarization and followed by separate receivers, allowing simultaneous regional access of satellites .

  3. List of FTP server return codes - Wikipedia

    en.wikipedia.org/.../List_of_FTP_server_return_codes

    List of FTP server return codes. FTP server return codes always have three digits, and each digit has a special meaning. [1] The first digit denotes whether the response is good, bad or incomplete: Range. Purpose. 1xx. Positive Preliminary reply. The requested action is being initiated; expect another reply before proceeding with a new command ...

  4. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

  5. Area code 710 - Wikipedia

    en.wikipedia.org/wiki/Area_code_710

    Area code 710 is a special area code in the North American Numbering Plan (NANP). It was reserved for the federal government of the United States in 1983 for emergency services. [1] Since 1994, the area code has provided access for authorized personnel to the Government Emergency Telecommunications Service (GETS) in the United States, and the ...

  6. Telephone numbers in Armenia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Armenia

    00 + Country Code + Destination Code + Subscriber Number. Calls to North America from anywhere in Armenia receive a substantial discount if preceded by a special code specific to each Armenian phone company. For example, if one makes a call from a Vivacell-MTS phone to North America and dials 77 first, one is charged 14 AMD per minute.

  7. Area code 719 - Wikipedia

    en.wikipedia.org/wiki/Area_code_719

    Area code 719. Coordinates: 38°0′0″N 104°0′0″W. Clickable map of Colorado area codes in blue (with bordering states). [1] Area code 719 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Colorado. The numbering plan area (NPA) includes Colorado Springs, Pueblo, Monument, Leadville, Alamosa ...

  8. Common Access Card - Wikipedia

    en.wikipedia.org/wiki/Common_Access_Card

    The common access card, also commonly referred to as the CAC, is the standard identification for active duty United States defense personnel. The card itself is a smart card about the size of a credit card. [1] Defense personnel that use the CAC include the Selected Reserve and National Guard, United States Department of Defense (DoD) civilian ...

  9. Access - Wikipedia

    en.wikipedia.org/wiki/Access

    Access (comics), a character from Amalgam Comics. Access (EP), a 2022 EP by Acid Angel from Asia. Access (group), a Japanese pop duo. "Access" (song), a 2018 song by Martin Garrix. Access 5, a NASA program. Access Linux Platform, an operating system for mobile devices. Access network, the process of signing onto a network.