Code

Language and codes use signs

Natural signs

Conventional signs

This means something

But you may not know what

Natural language uses conventional signs

Easy if you know the English alphabet

Very difficult if you don’t

Natural or conventional?

•　　木•　　林•　　森

Natural?

•　　概念

Not natural at all?

•　　馬

How about this?

•　　山

Or this?

•　魚

Moving from natural

•　　木•　　林•　　森

To conventional

•　　概念

Natural or conventional?

Relationship word-thought-thing

Word dog; thought dog; thing dog

Word apple; thought apple; thing apple

The word pen, the thought pen, the thing pen

Or pineapple

Get the idea APPLE

Put it into code

Sound or writing or a picture

Encode it

Hear the sound

Or read the word

Or see a picture

Get the idea APPLE again

Decode

•　　鉛筆•　　林檎•　　🍍

Word want; thought want; thing want?

Emotions are things?

• Hate• Love• Shame• Happiness• Sadness• Optimism• Etc• Is the thought different from the thing?

Emotions communicated naturally?

Do ALL humans understand these?

How did these signs get connected with the emotion?

•　　愛•　　恥•　　喜•　　悲

Semaphore

Do machines think?

Pig Latin

• Istenlay to emay• Listen to me

• Ouyay reaay razycay• You are crazy

Pig Latin

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

Ooklay in the agbay

Look in the bag!

Ooklay in the agbay

Cockney rhyming slang

Parts of London

Silly cockney clothes

Audrey Hepburn

My Fair Lady


• Take a word• Change it to a word that rhymes

Use your loaf

Use your loaf

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

He’s telling porkies

Porkies?

Pork pies

Pork pies = lies

She’s always telling porkies

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

Dog and bone

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

Dog and bone = phone

• He keeps dogging me• He keeps phoning me

Lady Godiva?

Godiva = fiver = five pound note

Take a butcher’s at this.

A butcher

A butcher’s hook

Butcher’s hook = look

Take a butcher’s at this

• Butcher’s• Butcher’s hook• Look• Take a look at this

Plates

My plates are hurting

Plate of meat

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

I’m on my tod

Todd Sloan (on the right)

Famous jockey

Over 100 years ago

I’m on my tod

• Todd Sloan• Own• I’m on my own

• Also Jack Jones• I’m on my jack

She’s got a long gregory

Gregory Peck

Gregory Peck = neck

He’s got a very long gregory

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

Raspberry

Raspberry tart

Raspberry tart = fart

Blow a raspberry

Blow a raspberry = sound like a fart

Blow a raspberry

• Raspberry• Raspberry tart• Fart

• 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.

Tea leaf

Bricks and mortar

Bricklayers mortar

• Trouble and strife• Wife

• Tea leaf• Thief

• Bricks and mortar• Daughter

• Bees and honey• Money

• Burton on Trent• Rent

• Half-inch• Pinch (steal)

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

• Cherry ripe• Pipe

• Dicky dirt• Shirt

• Frog and toad• Road

• How do you dos• Shoes

• Westminster Abbey• Shabby

• Battle cruiser• Boozer

• Custard and jelly• Telly (television)• No one’s watching the custard

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

• North and south• Mouth

• Aristotle• Bottle

• Nuclear sub• Pub

• Bird’s nest• Chest

I couldn’t Adam and Eve it

• I couldn’t believe it

Look at her barnet

Barnet Fair = hair

Any other codes?

Red = stop

Green = go

Yellow = changing

Musical notation

Secret code

A simple secret code

Everything shifted 3 in one direction

• ZXY = ?• CAB

Even simpler

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

• W = 23• X = 24• Y = 25• Z = 26

• 6 5 5 4 =• FEED

• 20 19 21 18 21• T S U R U

Natural signs

• Skies getting dark

• Clouds appearing

• Lightning

Conventional signs

Conventional or natural

What is code?

• Using signs to communicate

What is encoding?

• Putting an idea into a sign• Using a sign to convey some idea

What is decoding?

• Taking the signs and working out what they mean

What is semaphore?

• Flag code

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


• Use words that rhyme• Apples and stairs = pears

This code?

• 5 22 1 14 19• ……………………..• E V A N S

Code

Education

Transcript of Code