L EARN TO C OUNT IN B INARY CALLED “M ACHINE L ANGUAGE ” T HE L ANGUAGE OF THE C OMPUTER …. Now you will become a real “bit head” or “computer nerd” 0’s and 1’s

0 = OFF 1 = ON ELECTRICAL IMPULSES EXAMPLE: WHAT HAPPENS WHEN YOUR CELL PHONE DIES? NO ELECTRICITY! Did you know? The human brain also runs off of electrical impulses called …..

B INARY D IGITS ARE 1’ S OR 0’ S DIGIT = A S INGLE N UMBER BINARY = A N UMBER S YSTEM B ASED ON ZEROS OR ONES. A bit is a 1 or a 0. B INARY D IG I T = BIT

B INARY VOCABULARY Bit = 0 or 1 Byte = 8 bits 1 Byte = 1 character on the keyboard (, A, ©) Nibble = part of a byte (4 bits = ½ of a byte) Hex = 6 (six-sided) Hexadecimal = 16 digits = hex (0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15) Used when creating and mixing colors It’s how we get 16 million different colors to use on our computer).

ASCII (American Standard Code for Information Interchange) ASCII is a standard that all computers can understand. It contain 128 characters but 33 of these are non-printing and mostly obsolete control character that affect how text is processed. All 95 other characters correspond to a number. ASCII start as a standard in 1967 and was later updated in There is also extended tables but no one of these is a real standard. It depends on your computer.

UNICODE D EFINITION Unicode is the international standard whose goal is to provide the means to encode the text of every document people want to store in computers. Including Mathematics and all Written Languages Around the World ä Ӫ Ӕ ऴ ಸ ᇫᅧദ

T HE B INARY NUMBER = WE NEED 8 VOLUNTEERS TO BE BINARY DIGITS ( CLASS CHOOSE NUMBERS BETWEEN 0 AND 255)

COUNTING IN HEXIDECIMAL REPEAT THE RIGHT 4 BITS TWICE If the “nibble” adds up to 10 – 15, use A – F F F

JUST FOR FUN H OLD YOUR A LT K EY D OWN AND PRESS THE 4- DIGIT D ECIMAL NUMBER OF THE NUMERIC KEYPAD AND SEE WHAT YOU GET ???? Alt – 0169 is © the copyright symbol The utility of ASCII is when you don't know where to find a character on your keyboard. You just have to press the ALT key, hold it down and type the decimal number on the numeric keypad.

W EB R ESOURCE FOR FINDING CHARACTERS