Information and Communication Technology: The INFORMATION THEORY (an INTRODUCTION) presented by: Rhiza S. Sadjad rhiza@unhas.ac.id http://www.unhas.ac.id/rhiza/

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Presentation transcript:

Information and Communication Technology: The INFORMATION THEORY (an INTRODUCTION) presented by: Rhiza S. Sadjad rhiza@unhas.ac.id http://www.unhas.ac.id/rhiza/

Yet, another extended meaning of INFORMATION The UNIT of INFORMATION The UNIT of INFORMATION

Key element/basic resource INFORMATION Information ENERGY Industrial FOOD Agricultural Key element Society (Source: Everett M. Rogers, [ 1986 ], “ Communication Technology ”, page. 13)‏

Key element/basic resource INFORMATION ENERGY FOOD Key element UNIT kg, lbs, liter, oz ....... kWh, Joule, ......barrel ???????

The SMALLEST UNIT of INFORMATION The SIMPLEST FORM of INFORMATION 1 BIT ......will you marry me...??? (Binary digIT) 1

The VALUE of an INFORMATION 1 BIT = differs 2 things 1

The VALUE of an INFORMATION 2 BITs = could differ 4 things 00 01 10 11

The VALUE of an INFORMATION 3 BITs = could differ up to 8 things 000 100 001 101 010 110 011 111

The VALUE of an INFORMATION n BITs = could differ up to 2n things: 0000 0100 1000 1100 0001 0101 1001 1101 0010 0110 1010 1110 0011 0111 1011 1111

The VALUE of an INFORMATION ASCII Code = American Standard Code for Information Interchange a b c d e ................. x y z A B C D E F G H ..........Z 0 1 2 3 4 5 6 7 8 9 ~`!@#$%^&*()_-+=|\}]{[”':;?/.< 8 BIT codes All kinds of “character” from 00000000 examples up to 11111111 H = 01001000 a = 01100001 \ = 01011100 b = 01100010 h = 01101000 Z = 01011010

The VALUE of an INFORMATION For example........... How much information is in a 275-page book ???? How many characters??? 8 BIT X 550.000 275 pages X 40 lines/page in average X 10 words/line in average X 5 characters/word in average 4.400.000 BIT

Larger units of INFORMATION 1000 bit 1 Kilobit 1 Kb 1000 Kb 1 Megabit 1 Mb 1000 Mb 1 Gigabit 1 Gb 1000 Gb 1 Terrabit 1 Tb 1 Byte 1 B = 8 s/d 10 bit

Larger units of INFORMATION Example: A flashdisk has a capacity of 8 Gb. How many e-books of 5.5 Mb can be stored in the flashdisk?

Larger units of INFORMATION Answer: The flashdisk has the capacity of 8 Gb = 8000 Mb. The e-book's “size” is 5.5 Mb. Thus, the flashdisk can be filled up to 8000/5.5 e-books, or around 1455 e-books ! (Compare to your bag, how many books can you store in it??? 5, 6, .... 10 books?)

NEXT The Information Theory ............ to be continued