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Math in the Modern World > Module 2: Beauty of Codes > Flashcards

Module 2: Beauty of Codes Flashcards

1
Q

a symbolic way to represent information

A

codes

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2
Q

Seven numeral symbols that have a fixed integer value

A

I, V, X, L, C, M, D

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3
Q

used by the Egyptians in their writing system during ancient times

A

hieroglyphics (sacred writings)

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3
Q
  • basically logographic writing system
  • one of the world’s greatest writing systems
A

Chinese numeral system

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3
Q

a number system that uses only two values

A

binary number system

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4
Q

an optical, machine-readable, representation of data

A

barcode

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5
Q

traditional barcodes systematically represent data by varying the widths and spacings of parallel lines

A

linear or one-dimensional (1D) barcodes

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6
Q

developed using rectangles, dots, hexagons, and other geometric patterns

A

matrix or two-dimensional (2D) barcodes

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7
Q

barcodes are scanned by optical scanners

A

barcode readers

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8
Q

who invented the barcode? when and where was it patented?

A

Norman Joseph Woodland and Bernard Silver; United States in 1952

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9
Q

the use of barcodes has spread to many other tasks that are generically referred to as –

A

Automatic identification and Data Capture (AIDC)

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10
Q

the very first scanning of the Universal Product Code (UPC) barcode was on a pack of – on –

A

Wrigley Company’s Juicy Fruit Gum on June 26, 1974

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11
Q
  • a specific type of 2D barcode that has become popular recently
  • barcoding became an efficient way of translating data instantaneously
  • used for automated data collection
A

Quick Response (QR) Code

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12
Q

Types of Linear or 1D Barcodes

A

UPC, EAN-13, Pharmacode (Postnet, Pessey, ITF-14)

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13
Q

Types of matrix or 2D barcodes

A

Aztec, MaxiCode, QR, PDF-147

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14
Q
  • used to identify individual items, specific products, people, accounts, or documents
  • useful for recognition or direction of materials and for tracking and inventory purposes of products or documents
A

Identification numbers

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15
Q

Types of identification numbers

A
  • numeric identification numbers
  • alphanumeric identification number
16
Q

a single positive number or a string of digits, sometimes separated by dashes or spaces

A

numeric identification number

17
Q

an example of a numeric identification number

A

Tax Identification Number (TIN)

18
Q

has a string of digits, letters, or/and even other symbols

A

alphanumeric identification number

19
Q

examples of an alphanumeric identification number

A

vehicle plate

20
Q
  • used to verify errors in identification numbers
  • a single number that is generated using the other characters from the identification number
A

check digit or check sum

21
Q

the 12-digit identification number of a retail item

A

Universal Product Code (UPC)

22
Q

issues the manufacturer an identification number and provides guidelines on how to use it

A

Uniform Code Council (UCC)

23
Q

UPC in the United States

A

UPC-A

24
Q

specific use of d1- 0

A

general groceries

25
Q

specific use of d1- 2

A

meat products

26
Q

specific use of d1- 3

A

drug and health products

27
Q

specific use of d1- 4

A

non-food items

28
Q

specific use of d1- 5

A

coupons

29
Q

specific use of d1- 6,7

A

other items

30
Q

specific use of d1- 1, 8, 9

A

reserved for future use

31
Q

a numbering system used in global trade to identify a specific retail product type, in a specific packaging configuration, from a specific manufacturer

A

International Article Number (European Article Number or EAN)

32
Q

types of EAN

A

EAN-2, EAN-5, EAN-8, EAN-13

33
Q

most commonly used EAN

A

EAN-13

34
Q

country code of Philippines

A

480

35
Q

Where, who, and when: the invention of QR code

A

Japan; Toyota subsidiary Denso-Wave; 1994

36
Q

approximate error correction capacity of low (L) level

A

7

37
Q

approximate error correction capacity of medium (M) level

A

15

38
Q

approximate error correction capacity of Quartile (Q) level

A

25

39
Q

approximate error correction capacity of high (H) level

A

30

Math in the Modern World (4 decks)

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