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Digital Information

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Making Organized Lists -> Counting in Binary

0

1

2

3

4

5

6

7

0 0 0

0 0 1

0 1 0

0 1 1

1 0 0

1 0 1

1 1 0

1 1 1

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Your flippy do has 8 bits…

which together make...

1 byte

Each place value represents one "bit" (binary digit). A bit can be a zero or a one.

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Decimal number: a base 10 number with ten possible different digits

0 1 2 3 4 5 6 7 8 9

10¹	10⁰
10	1
2	3

2⁴	2³	2²	2¹	2⁰
16	8	4	2	1
1	0	1	1	1

Binary number: a base 2 number with two possible different digits

0 1

Same number represented two different ways.

⬅ Decimal Binary ➡

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Bit: A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1

Byte: 8 bits

p

10010101

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Unit 1 Lesson 6 - Activity

Num.	Bits	Char.	Num.	Bits	Char.	Num.	Bits	Char.
32	00100000	Space	64	01000000	@	96	01100000	`
33	00100001	!	65	01000001	A	97	01100001	a
34	00100010	"	66	01000010	B	98	01100010	b
35	00100011	#	67	01000011	C	99	01100011	c
36	00100100	$	68	01000100	D	100	01100100	d
37	00100101	%	69	01000101	E	101	01100101	e
38	00100110	&	70	01000110	F	102	01100110	f
39	00100111	'	71	01000111	G	103	01100111	g
40	00101000	(	72	01001000	H	104	01101000	h
41	00101001	)	73	01001001	I	105	01101001	i
42	00101010	*	74	01001010	J	106	01101010	j
43	00101011	+	75	01001011	K	107	01101011	k
44	00101100	,	76	01001100	L	108	01101100	l
45	00101101	-	77	01001101	M	109	01101101	m
46	00101110	.	78	01001110	N	110	01101110	n
47	00101111	/	79	01001111	O	111	01101111	o
48	00110000	0	80	01010000	P	112	01110000	p
49	00110001	1	81	01010001	Q	113	01110001	q
50	00110010	2	82	01010010	R	114	01110010	r
51	00110011	3	83	01010011	S	115	01110011	s
52	00110100	4	84	01010100	T	116	01110100	t
53	00110101	5	85	01010101	U	117	01110101	u
54	00110110	6	86	01010110	V	118	01110110	v
55	00110111	7	87	01010111	W	119	01110111	w
56	00111000	8	88	01011000	X	120	01111000	x
57	00111001	9	89	01011001	Y	121	01111001	y
58	00111010	:	90	01011010	Z	122	01111010	z
59	00111011	;	91	01011011	[	123	01111011	{
60	00111100	<	92	01011100	\	124	01111100	\|
61	00111101	=	93	01011101	]	125	01111101	}
62	00111110	>	94	01011110	^	126	01111110	~
63	00111111	?	95	01011111	_

ASCII (American Standard Code for Information Interchange)

Prompt:

What's the same as the systems you created?
What's different?
What is most interesting or surprising about this system?

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Abstraction

Unit 1 Lesson 6 - Wrap Up

how's it going?

TEXT

ASCII

104 111 119 39 115 32 105 116 32 103 111 105 110 103 63

ASCII

BINARY

We don't have to think about this layer when we send a text message… but every message is really just zeroes and ones!

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DIGITAL IMAGE LAYER

Displays a digital approximation based on a sampling of an analog image

Layers of Abstraction

in Color Images

SAMPLING LAYER

Samples of equal size are read from the analog image and assigned to pixels.

PIXEL LAYER

Each pixel is represented by levels of red, green, and blue light.

BINARY LAYER

The red, green, and blue values are represented using a sequence of

binary numbers and sent out via electrical signals.

Unit 1 Lesson 8 - Wrap Up

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Unit 1 Lesson 8 - Wrap Up

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Unit 1 Lesson 11 - Activity

Copyright Overview

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Unit 1 Lesson 11 - Activity

Copyright in Practice

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Unit 1 Lesson 11- Activity

Creative Commons Copyright