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  2. 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. [5] [6] [7] 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; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

  3. Cryptographically secure pseudorandom number generator ...

    en.wikipedia.org/wiki/Cryptographically_secure...

    In the asymptotic setting, a family of deterministic polynomial time computable functions : {,} {,} for some polynomial p, is a pseudorandom number generator (PRNG, or PRG in some references), if it stretches the length of its input (() > for any k), and if its output is computationally indistinguishable from true randomness, i.e. for any probabilistic polynomial time algorithm A, which ...

  4. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    ); the next digit a pattern of 4 on, 4 off; the i-th least significant bit a pattern of 2 i on 2 i off. The most significant digit is an exception to this: for an n-bit Gray code, the most significant digit follows the pattern 2 n-1 on, 2 n-1 off, which is the same (cyclic) sequence of values as for the second-most significant digit, but ...

  5. Disney World Wants to Catch Lightning Lane Multi Pass ... - AOL

    www.aol.com/disney-world-wants-catch-lightning...

    On its first day of availability, Lightning Lane Multi Pass costs between $18 and $29 for each of the four parks. It's a product priced for the masses. Disney has said in the past that as many as ...

  6. Cyclic redundancy check - Wikipedia

    en.wikipedia.org/wiki/Cyclic_redundancy_check

    Cyclic redundancy check. A cyclic redundancy check ( CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data. [1] [2] Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents.

  7. Prime Day deals under $50 — 50+ items to shop right now - AOL

    www.aol.com/lifestyle/prime-day-deals-under-50...

    L'Oreal Paris Collagen Daily Face Moisturizer. $9 $11 Save $2. A collagen-boosting moisturizer beloved by shoppers of all ages and an absolute AOL-reader favorite. If this is your moisturizer of ...

  8. UTF-8 - Wikipedia

    en.wikipedia.org/wiki/UTF-8

    UTF-8. UTF-8 is a variable-length character encoding standard used for electronic communication. Defined by the Unicode Standard, the name is derived from Unicode Transformation Format – 8-bit. [ 1] UTF-8 is capable of encoding all 1,112,064 [ a] valid Unicode code points using one to four one- byte (8-bit) code units.

  9. Bit error rate - Wikipedia

    en.wikipedia.org/wiki/Bit_error_rate

    1:7 – Also referred to as 1 in 8. It has only a single one in an eight-bit repeating sequence. It has only a single one in an eight-bit repeating sequence. This pattern stresses the minimum ones density of 12.5% and should be used when testing facilities set for B8ZS coding as the 3 in 24 pattern increases to 29.5% when converted to B8ZS.