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ASC II full code table and Introduction

Print View , by: iSee ,Total views: 61 ,Word Count: 920 ,Date: Wed, 26 Aug 2009 Time: 10:08 PM

At present the computer using the most widely used character set and encoding, by the American National Standards Institute (ANSI) to develop the ASCII code (American Standard Code for Information Interchange, American Standard Code for Information Interchange), it has been the International Organization for Standardization (ISO ) as the international standard known as ISO 646 standard. Applies to all the Latin alphabet characters, ASCII codes are 7 yards and 8 yards in two forms.
Because a binary number can be expressed as (21 =) two kinds of states: 0,1; and 2-bit binary number can be expressed as (22) = 4 states: 00,01,10,11; in turn and so on, 7-bit binary number can be that (27 =) 128 states, each state is uniquely prepared for a 7-bit binary code, corresponding to a character (or control code), these codes can be arranged in a decimal number 0 to 127. Therefore, the 7-bit ASCII code is used to encode binary number 7, can be expressed as 128 characters.
No. 0 ~ 32 and 127 (total 34) is to control the character or communication-specific characters, such as the control characters: LF (line feed), CR (carriage return), FF (FF), DEL (delete), BS (backspace), BEL (ringing), etc.; Communications special characters: SOH (Man head), EOT (end text), ACK (confirmation), etc.;
No. 33 ~ 126 (total 94) is a character, the first 48 ~ 57 10 Arabic numerals 0 to 9; 65 ~ 90 No. 26 uppercase English letters, 97 ~ 122, No. 26 lowercase letters, the rest for a number of punctuation marks, operator symbols.
Note: In the computer's memory unit, a value accounting for one-byte ASCII code (8 bits), the highest bit (b7) used as a parity bit. The so-called parity refers to the transmission process in the code used to test whether errors in a way, it normally takes two kinds of odd parity and even parity. Odd parity states: the correct code in a number of one byte must be odd, if not odd, then the highest bit b7 Tim 1; even parity states: the correct code in a number of one byte must be an even , if not even, then the highest bit b7 Tim 1.

Before 128 After the expansion of

0 00 € NUL
1 01 € SOH
2 02 € STX
3 03 € ETX
4 04 € EOT
5 05 € ENQ
6 06 € ACK
7 07 € BEL
8 08 € BS
9 09 € HT
10 0A € LF
11 0B € VT
12 0C € FF
13 0D € CR
14 0E € SO
15 0F € SI
16 10 € SLE
17 11 € CS1
18 12 € DC2
19 13 € DC3
20 14 € DC4
21 15 € NAK
22 16 € SYN
23 17 € ETB
24 18 € CAN
25 19 € EM
26 1A € SIB
27 1B € ESC

28 1C € FS
29 1D € GS
30 1E RS
31 1F € US
32 20 (space)
3321!
34 22 "
3523 #
3624 $
37 25%
3826 &
3927 '
4028 (
4129)
42 2A *
43 2B +
44 2C,
45 2D --
46 2E.
47 2F /
48300
49311
50322
51333
52344
53355
54366
55377
56388
57399
58 3A:
59 3B;
60 3C <
61 3D =
62 3E>
63 3F?

6440 @
65 41 A
66 42 B
67 43 c
68 44 D
69 45 E
70 46 F
71 47 G
72 48 H
73 49 I
74 4A J
75 4B K
76 4C L
77 4D M
78 4E N
79 4F O
80 50 P
81 51 Q
82 52 R
83 53 S
84 54 T
85 55 U
86 56 V
87 57 W
88 58 X
89 59 Y
90 5A Z
91 5B [
92 5C \
93 5D]
94 5E ^
95 5F _
9660 `
97 61 a
98 62 b
99 63 C++
100 64 d

101 65 e
102 66 f
103 67 g
104 68 h
105 69 i
106 6A j
107 6B k
108 6C l
109 6D m
110 6E n
111 6F o
112 70 p
113 72 q
114 72 r
115 73 s
116 74 t
117 75 u
118 76 v
119 77 w
120 78 x
121 79 y
122 7A z
123 7B (
124 7C |
125 7D)
126 7E ~
127 7F
128 80 €

12981?
130 * 82?
131 * 83?
132 * 84?
133 * 85?
134 * 86?
135 * 87?

136 * 88?
137 * 89?
138 * 8A?
139 * 8B?
140 * 8C?
141 8D?
142 8E?
143 8F?
14490?
14591
14692
147 * 93
148 * 94
149 * 95
150 * 96
151 * 97
152 * 98?
153 * 99?
154 * 9A?
155 * 9B?
156 * 9C?
157 9D?
158 9E?
159 * 9F?
160 A0
161 A1?
162 A2?
163 A3?
164 A4?
165 A5?
166 A6?
167 A7?
168 A8?
169 A9?
170 AA?
171 AB?
172 AC?
173 AD?
174 AE?
175 AF?

176 B0?
177 B1?
178 B2?
179 B3?
180 B4?
181 B5?
182 B6?
183 B7?
184 B8?
185 B9?
186 BA?
187 BB?
188 BC?
189 BD?
190 BE?
191 BF?
192 C0?
193 C1?
194 C2?
195 C3?
196 C4?
197 C5?
198 C6?
199 C7?
200 C8?
201 C9?
202 CA?
203 CB?
204 CC?
205 CD?
206 CE?
207 CF?
208 D0?
209 D1?
210 D2?
211 D3?
212 D4?
213 D5?
214 D6?
215 D7?

216 D8?
217 D9?
218 DA?
219 DB?
220 DC?
221 DD?
222 DE?
223 DF?
224 E0?
225 E1?
226 E2?
227 E3?
228 E4?
229 E5?
230 E6?
231 E7?
232 E8?
233 E9?
234 EA?
235 EB?
236 EC?
237 ED?
238 EE?
239 EF?
240 F0?
241 F1?
242 F2?
243 F3?
244 F4?
245 F5?
246 F6?
247 F7?
248 F8?
249 F9?
250 FA?
251 FB?
252 FC?
253 FD?
254 FE?
255 FF 


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