The characters that can be used to form words, numbers, and expressions are characters set in C. In C programming each character is represented by a number. The ASCII character set, for example, uses the numbers 0 through 127 to represent all English characters as well as special control characters.
Letters
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z
Digits
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Special Characters
, – Comma
. – Period
; – Semicolon
: – Colon
? – Question Mark
‘ – Apostrophe
” – Quotation Mark
! – Exclamation
| – Vertical Bar
/ – Slash
\ – Back Slash
~ – TIlde
_ – Underscore
$ – Dollar Sign
% – Percent Sign
& – Ampersand
^ – Caret
* – Asterisk
– – Minus Sign
+- Plus Sign
<- Less Than (Opening Angle Bracket)
>- Greater Than (Closing Angle Bracket)
(- Left Parenthesis
)- Right Parenthesis
[- Left Bracket
]- Right Bracket
{- Left Brace
}- Right Brace
#- Number Sign
White Spaces
Blank Space
Horizontal Tab
Carriage Return
New Line
Form Feed
ASCII Table
DEC
HEX
OCT
DEC
HEX
OCT
DEC
HEX
OCT
DEC
HEX
OCT
0
NUL
32
space
64
@
96
`
1
SOH
33
!
65
A
97
a
2
STX
34
“
66
B
98
b
3
ETX
35
#
67
C
99
c
4
EOT
36
$
68
D
100
d
5
ENQ
37
%
69
E
101
e
6
ACK
38
&
70
F
102
f
7
BEL
39
‘
71
G
103
g
8
BS
40
(
72
H
104
h
9
TAB
41
)
73
I
105
i
10
LF
42
*
74
J
106
j
11
VT
43
+
75
K
107
k
12
FF
44
‘
76
L
108
l
13
CR
45
–
77
M
109
m
14
SO
46
.
78
N
110
n
15
SI
47
/
79
O
111
o
16
DLE
48
0
80
P
112
p
17
DC1
49
1
81
Q
113
q
18
DC2
50
2
82
R
114
r
19
DC3
51
3
83
S
115
s
20
DC4
52
4
84
T
116
t
21
NAK
53
5
85
U
117
u
22
SYN
54
6
86
V
118
v
23
ETB
55
7
87
W
119
w
24
CAN
56
8
88
X
120
x
25
EM
57
9
89
Y
121
y
26
SUB
58
:
90
Z
122
z
27
ESC
59
;
91
[
123
{
28
FS
60
<
92
\
124
|
29
GS
61
=
93
]
125
}
30
RS
62
>
94
^
126
~
31
US
63
?
95
_
127
DEL
ASCII Table
The purpose of ASCII table is to create the standard for the character sets used in electronic devices. The standard ensures that different devices can communicate with each other with the same character code.
