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SCHOOL Of ENGINEERING
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DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
REPRESENTATION OFASCII - CODE
Presenlcd By.
Kaniksha R
20141UEL10
Ill - B.E- ECE

Ascii code

What is ASCII ?
ASCII Is an Industry standard c:ode, developed by the
American National Standards Institute (ANSI) and published
In 1963.
ASCII is a seven-bit code (a range of O to 127 decimal)
which assigns a binary value to letters, numbers, and other
characters. (Nowadays most computer work with 6bit-code. which
can represent 256 different values)
ASCII codes represent text and control characters In
computers, communications equipment, and other devices
that work with text.
o Most computers use ASCll codes to represent text, which
makes It possible to transfer data from one computer to
another.

D Computers can internally manage only binary data
like Os (zeros) and ls (ones).
D Computer use an ASCIT table to convert binary data
Into letters or characters, so we can see visually.
Tl''t lile. data
101000100010100
111100001010010
____
10101010001oj
..,
-
Convert
binary
data to
characters
Fr:-BCDEF11
1
I~
~ dcfg I
--=
l

OWithout ASCII code....
. . . . . 1 -
, : .. I · .•
.· .~ -
~
I
What
the
heck ..?
OASCII code table
http://www.ascii-code.com/
•

ASCII T
1
able
AMERICAN STANDARD CODE FOR INFORI
MATI
ION
IINTERCHANGE(,
ASCIII)
~c ~ JC Oct Char DK t!ex Oo Char Dec ~ Dt-i CbA,r Dec. Hex D
el Char
0 0 n .Kl ~ 61 q ~ 60 ii10
J. 1 3 lil :u 411 I 6j "l gJ 61 li'I a
2 l' J M n :z • 11!',6" t!:tl 9! 61 ll-12 II
3 ) l :I~ 11 ;!:J • !ll :ill i9 lGJI U) C
. 4 ~ :u 2'1
'" $ ta "4 100 f=& 144 t:I
.,.
Si !$ c
... Ji 25 41 ,., i'i ~s JOI ~ l45 ~
6 ti n 1.fi 4!i
' 70 &ti P' Im ~ 'U I
.,
' ~ :i, 41
,. 'H 4:, {i !01 ~'1 U ,7 Q
~. 1B ii ~ a so
• )'} ill H 104 A J ,,
9 t n IG] 5 51 I l il cp I la! G9 lS1 i
HJ A llf tl :Z.li. 52 • 74 Q I 105 6.11 :tS2 J
1J !I u II) le. ,1 "'" l~ ill! E 101 16:a U3 ~r
11 c l,C
" lC ,. . Jfj ,c L 1"3. 6C 154 I
H I) u 111.!li :a 55 11
'° M ICl"l ~ 155
'"
21 E ll ~ :HJ 1£ 7! ,If;; ~ 110 61: lS6
"
a l C
J 1F
~· '
f'i '-f 0 111 Er: lSJ Q
]lfj, 10 ;ro ,=;~ so 0 BO !iO p l U 10 J(,g p
n H 21 :i n ii n 1!21 0 1111 11 161 (I
lB Ll so Jl 2 'S2 !21! R. tll n IQ r
u n 5'! I! ! 5l w s H5' "IJ t l 1,
10 u 9 J.; & !:I u, T U6 11 Ui4 l
ll il.5 53
" e 5 )5 m u 117 u l 5 u
:n t6 5,& J5 i:;5 ~ ,. l 111! 116 I & ~
:JJ, ~; !H n 6l , S1 n 'i"J JILi 'U a 1 ..
2• 2 ll i8 Si X 110 JI na ..
25 ' 5iJ "l 9 ~t y 1a ,:o i l .,
26 511 1,1, ~ t m 1A a,: ,
~
, U!i s lfl JI lil I 1ll ~ UJ [
ZS, lC c:, I!' ,. < !H '5C 114 IC n, I
19 ffll J5 61 1D ~ 9.J ~ I Ia TI) u )
30 15. E2 J! l .. 91 !¥ - !16, Ji!; u
:
u IF f cl F 11 ~ ff U7 i1if n1

An example of ASCII code of character''$"
~ ~~-:::.] 64 32
~ '.
Blna~--o o1 o
Decimal-·
- - -32
16
I
+
8 4
0100
I
2
I
I
!
4 - 36
1
I
•

PUEBLO
/ ~
L
01010000 0I0Iomo1 01000101 01000010 01001100 0100111 1
•

~ ASCII
• Can only represent 127 or 255 characters
• Can only code for the standard English language
characters (not for others like Chinese/Arabic)

Thank you