The uses of code, encoding, and decoding

1. Code

2. Language and codes use signs

3. Natural signs

4. Conventional signs

5. This means something

6. But you may not know what

7. Natural language uses conventional
signs

8. Easy if you know the English alphabet

9. Very difficult if you don’t

10. Natural or conventional?
• 木
• 林
• 森

11. Natural?
• 概念

12. Not natural at all?
• 馬

13. How about this?
• 山

14. Or this?
• 魚

15. Moving from natural
• 木
• 林
• 森

16. To conventional
• 概念

17. Natural or conventional?

18. Natural or conventional?

19. Relationship word-thought-thing

20. Word dog; thought dog; thing dog

21. Word apple; thought apple; thing
apple

22. The word pen, the thought pen, the
thing pen

23. Or pineapple

24. Get the idea APPLE

25. Put it into code

26. Sound or writing or a picture

27. Encode it

28. Hear the sound

29. Or read the word

30. Or see a picture

31. Get the idea APPLE again

32. Decode

33. • 鉛筆
• 林檎
• 🍍

34. Word want; thought want; thing want?

35. Emotions are things?
• Hate
• Love
• Shame
• Happiness
• Sadness
• Optimism
• Etc
• Is the thought different from the thing?

36. Emotions communicated naturally?

37. Do ALL humans understand these?

38. How did these signs get connected
with the emotion?
• 愛
• 恥
• 喜
• 悲

39. Code

40. Code

41. Semaphore

42. Code

43. Do machines think?

44. Pig Latin
• Istenlay to emay
• Listen to me
• Ouyay reaay razycay
• You are crazy

45. Pig Latin
• Take away the first letter
• Put it on the end
• Add “ay”
• Why?
• No reason
• It’s conventional

46. Ooklay in the agbay

47. Look in the bag!

48. Ooklay in the agbay

49. Cockney rhyming slang

50. Parts of London

51. Silly cockney clothes

52. Audrey Hepburn

53. My Fair Lady

54. Cockney rhyming slang

55. Cockney rhyming slang
• Take a word
• Change it to a word that rhymes

58. Use your loaf

59. Use your loaf
• Loaf
• Loaf of bread
• Head
• Use your loaf
• Use your head

60. He’s telling porkies

61. Porkies?

62. Pork pies

63. Pork pies = lies

64. She’s always telling porkies
• Porkies
• Pork pies
• lies
• She’s always telling porkies
• She’s always telling lies

65. Dog and bone

66. I’ll get on the old dog and bone and
talk to him

67. Dog and bone = phone

68. Phone

69. • He keeps dogging me
• He keeps phoning me

70. Lady Godiva?

71. Godiva = fiver = five pound note

72. Take a butcher’s at this.

73. A butcher

74. A butcher’s hook

75. Butcher’s hook = look

76. Take a butcher’s at this
• Butcher’s
• Butcher’s hook
• Look
• Take a look at this

77. Plates

78. My plates are hurting

79. Plate of meat

80. • My plates are hurting
• Plates
• Plates of meat
• Feet
• My feet are hurting

81. I’m on my tod

82. Todd Sloan (on the right)

83. Famous jockey

84. Over 100 years ago

85. I’m on my tod
• Todd Sloan
• Own
• I’m on my own
• Also Jack Jones
• I’m on my jack

86. She’s got a long gregory

87. Gregory Peck

88. Gregory Peck = neck

89. He’s got a very long gregory
• Gregory
• Gregory Peck
• Neck
• He’s got a very long neck

90. Raspberry

91. Raspberry tart

92. Raspberry tart = fart

93. Fart

94. Blow a raspberry

95. Blow a raspberry = sound like a fart

96. Blow a raspberry
• Raspberry
• Raspberry tart
• Fart

97. • I’m going there with my trouble and strife.
• He’s just a common tea leaf.
• My trouble and strife was there with my bricks
and mortar.

99. Tea leaf

100. Bricks and mortar

101. Bricklayers mortar

102. • Trouble and strife
• Wife
• Tea leaf
• Thief
• Bricks and mortar
• Daughter

103. • Bees and honey
• Money
• Burton on Trent
• Rent
• Half-inch
• Pinch (steal)

104. • I was walking down the frog and toad smoking
my cherry pipe with a clean dicky on.

105. • Cherry ripe
• Pipe
• Dicky dirt
• Shirt
• Frog and toad
• Road

106. • How do you dos
• Shoes
• Westminster Abbey
• Shabby

107. • Battle cruiser
• Boozer
• Custard and jelly
• Telly (television)
• No one’s watching the custard

108. • I went down the nuclear sub and I saw my
trouble and strife with an aristotle in her
north and south.

109. • North and south
• Mouth
• Aristotle
• Bottle
• Nuclear sub
• Pub

110. • Bird’s nest
• Chest

111. I couldn’t Adam and Eve it
• I couldn’t believe it

112. Look at her barnet

113. Barnet Fair = hair

114. Any other codes?

115. Red = stop

116. Green = go

117. Yellow = changing

118. Musical notation

119. Secret code

120. A simple secret code

121. Everything shifted 3 in one direction

122. • ZXY = ?
• CAB

123. Even simpler
• A = 1
• B = 2
• C = 3
• D = 4
• E = 5
• F = 6
• G = 7

124. • W = 23
• X = 24
• Y = 25
• Z = 26

125. • 6 5 5 4 =
• FEED
• 20 19 21 18 21
• T S U R U

126. Natural signs
• Skies getting dark
• Clouds appearing
• Lightning

127. Conventional signs

128. Conventional or natural

129. Conventional or natural

130. What is code?
• Using signs to communicate

131. What is encoding?
• Putting an idea into a sign
• Using a sign to convey some idea

132. What is decoding?
• Taking the signs and working out what they
mean

133. What is semaphore?
• Flag code

135. Pig Latin
• Take a word
• Remove the first letter
• Add it to the end of a word
• Add “-ay”
• Ooklay in the agbay
• Look in the bag

136. Cockney rhyming slang
• Use words that rhyme
• Apples and stairs = pears

137. This code?
• 5 22 1 14 19
• ……………………..
• E V A N S