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Updated
November 2004

   Dynamoo 2004

  

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Code Complete: A Practical Handbook of Software Construction
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The Pragmatic Programmer

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Table of ASCII Characters

binary
MSN 
0000
0001
0010
0011
0100
0101
0110
0111
LSN 
hex
0
1
2
3
4
5
6
7
0000
0
NUL

00
DLE
16 
10
SP
32 
20
0
48 
30
@
64 
40
P
80 
50
`
96 
60
p
112 
70
0001
1
SOH

01
XON 
(DC1)
17 
11
!
33 
21
1
49 
31
A
65 
41
Q
81 
51
a
97 
61
q
113 
71
0010
2
STX

02
DC2
18 
12
"
34 
22
2
50 
32
B
66 
42
R
82 
52
b
98 
62
r
114 
72
0011
3
ETX

03
XOFF (DC2)
19 
13
#
35 
23
3
51 
33
C
67 
43
S
83 
53
c
99 
63
s
115 
73
0100
4
EOT

04
DC4
20 
14
$
36 
24
4
52 
34
D
68 
44
T
84 
54
d
100 
64
t
116 
74
0101
5
ENQ

05
NAK
21 
15
%
37 
25
5
53 
35
E
69 
45
U
85 
55
e
101 
65
u
117 
75
0110
6
ACK

06
SYN
22 
16
&
38
26
6
54 
36
F
70 
46
V
86 
56
f
102 
66
v
118 
76
0111
7
BEL

07
ETB
23 
17
'
39 
27
7
55 
37
G
71 
47
W
87 
57
g
103 
67
w
119 
77
1000
8
BS

08
CAN
24 
18
(
40 
28
8
56 
38
H
72 
48
X
88 
58
h
104 
68
x
120 
78
1001
9
HT

09
EM
25 
19
)
41 
29
9
57 
39
I
73 
49
Y
89 
59
i
105 
69
y
121 
79
1010
A
LF
10 
0A
SUB
26 
1A
*
42 
2A
:
58 
3A
J
74 
4A
Z
90 
5A
j
106 
6A
z
122 
7A
1011
B
VT
11 
0B
ESC
27 
1B
+
43 
2B
;
59 
3B
K
75 
4B
[
91 
5B
k
107 
6B
{
123 
7B
1100
C
FF
12 
0C
FS
28 
1C
,
44 
2C
<
60 
3C
L
76 
4C
\
92 
5C
l
108 
6C
|
124 
7C
1101
D
CR
13 
0D
GS
29 
1D
-
45 
2D
=
61 
3D
M
77 
4D
]
93 
5D
m
109 
6D
}
125 
7D
1110
E
SO
14 
0E
RS
30 
1E
.
46 
2E
>
62 
3E
N
78 
4E
^
94
5E
n
110 
6E
~
126 
7E
1111
F
SI
15 
0F
US
31 
1F
/
47 
2F
?
63 
3F
O
79 
4F
_
95 
5F
o
111 
6F
DEL
127 
7F

 

Hex
Name
Description
00
NUL
Null ^@
01
SOH
Start Of Heading
02
STX
Start of TeXt
03
ETX
End of TeXt
04
EOT
End Of Transmission
05
ENQ
ENQuiry
06
ACK
ACKnowledge
07
BEL
BELl (beep) ^G
08
BS
BackSpace ^H
09
TAB
horizontal TAB ^I
0A
LF
Line Feed ^J
0B
VT
Vertical Tab
0C
FF
Form Feed ^L
0D
CR
Carriage Return
0E
SO
Shift Out
0F
SI
Shift In
Hex
Name
Description
10
DLE
Data Link Escape
11
XON
Xmit ON ^Q
12
DC2
Device Control 2
13
XOFF
Xmit OFF ^S
14
DC4
Device Control 4
15
NAK
Negative AcKnowledge
16
SYN
SYNchronous idle
17
ETB
End of Transmission Block
18
CAN
CANcel
19
EM
End of Medium
1A
SUB
SUBstitute
1B
ESC
ESCape ^[
1C
FS
File Separator
1D
GS
Group Separator
1E
RS
Record Separator
1F
US
Unit Separator

 

The values to the right of the ASCII character are that character's ASCII values in decimal and hexadecimal. The LSN column signifies the least significant nybble (4 bits) of the binary value, the MSN row is the most significant nybble of the binary value, thus the commercial-at (@) sign has an LSN of 0000 and an MSN of 0100, making 01000000. The second row and column show the LSN and MSN in their hexadecimal (base 16) values. 

ASCII values 32 decimal to 126 decimal are printable ASCII characters. 

The position of the Pound Sign () varies significantly between different interpretations of the ASCII set. In older versions it can sometimes be found at 35 decimal, in place of the hash symbol (#), but is now more often found at 163 decimal in the extended ASCII set.

ASCII is used in almost all computer systems except for some IBM midrange and mainframe systems that use EBCDIC. A more detailed explanation for ASCII and EBCDIC can be found here.

 

Recommended titles at Amazon.com:
Code Complete: A Practical Handbook of Software Construction (US / UK / Canada)
The Pragmatic Programmer (US / UK / Canada)

 

 

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