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ASCII stands for ’American Standard Code for Information Interchange’. It’s a
7-bit character code used to be the standard of text representation. Although
there are a number of other standards in use today, especially those that
support wide characters and multi-language interfaces, the ASCII character
set is the base for most of the character encodings used today.
The first 32 (0-31) characters in the ASCII-table are unprintable control
codes that are classicaly used to control peripheral devices such as
printers.
Codes 32-127 are the printable characters, which represent letters, digits, punctuation marks, and a few other symbols. Almost every character is available on standard keyboards. Character 127 represents the command DEL.
Dec | Oct | Hex | Name | Description |
---|---|---|---|---|
0 | 000 | 00 | NUL | Null char |
1 | 001 | 01 | SOH | Start of heading |
2 | 002 | 02 | STX | Start of text |
3 | 003 | 03 | ETX | End of text |
4 | 004 | 04 | EOT | End of transmission |
5 | 005 | 05 | ENQ | Enquiry |
6 | 006 | 06 | ACK | Acknowledgment |
7 | 007 | 07 | BEL | Bell |
8 | 010 | 08 | BS | Back space |
9 | 011 | 09 | HT | Horizontal tab |
10 | 012 | 0A | LF | Line feed |
11 | 013 | 0B | VT | Vertical tab |
12 | 014 | 0C | FF | Form feed |
13 | 015 | 0D | CR | Carriage return |
14 | 016 | 0E | SO | Shift out/XOn |
15 | 017 | 0F | SI | Shift in/XOff |
16 | 020 | 10 | DLE | Data line escape |
17 | 021 | 11 | DC1 | Device control 1 |
18 | 022 | 12 | DC2 | Device control 2 |
19 | 023 | 13 | DC3 | Device control 3 |
20 | 024 | 14 | DC4 | Device control 4 |
21 | 025 | 15 | NAK | Negative acknowledgment |
22 | 026 | 16 | SYN | Synchronous idle |
23 | 027 | 17 | ETB | End of transmit block |
24 | 030 | 18 | CAN | Cancel |
25 | 031 | 19 | EM | End of medium |
26 | 032 | 1A | SUB | Substitute |
27 | 033 | 1B | ESC | Escape |
28 | 034 | 1C | FS | File separator |
29 | 035 | 1D | GS | Group separator |
30 | 036 | 1E | RS | Record separator |
31 | 037 | 1F | US | Unit separator |
32 | 040 | 20 | SP | Space |
33 | 041 | 21 | ! | Exclamation mark |
34 | 042 | 22 | " | Double quotes |
35 | 043 | 23 | # | Number |
36 | 044 | 24 | $ | Dollar |
37 | 045 | 25 | % | Procenttecken |
38 | 046 | 26 | & | Ampersand |
39 | 047 | 27 | ’ | Single quote |
40 | 050 | 28 | ( | Open parenthesis |
41 | 051 | 29 | ) | Close parenthesis |
42 | 052 | 2A | * | Asterisk |
43 | 053 | 2B | + | Plus |
44 | 054 | 2C | , | Comma |
45 | 055 | 2D | - | Hyphen |
46 | 056 | 2E | . | Full stop |
47 | 057 | 2F | / | Slash or divide |
48 | 060 | 30 | 0 | Zero |
49 | 061 | 31 | 1 | One |
50 | 062 | 32 | 2 | Two |
51 | 063 | 33 | 3 | Three |
52 | 064 | 34 | 4 | Four |
53 | 065 | 35 | 5 | Five |
54 | 066 | 36 | 6 | Six |
55 | 067 | 37 | 7 | Seven |
56 | 070 | 38 | 8 | Eight |
57 | 071 | 39 | 9 | Nine |
58 | 072 | 3A | : | Colon |
59 | 073 | 3B | ; | Semicolon |
60 | 074 | 3C | < | Less than |
61 | 075 | 3D | = | Equals |
62 | 076 | 3E | > | Grater than |
63 | 077 | 3F | ? | Question mark |
64 | 100 | 40 | @ | At symbol |
65 | 101 | 41 | A | Capital A |
66 | 102 | 42 | B | Capital B |
67 | 103 | 43 | C | Capital C |
68 | 104 | 44 | D | Capital D |
69 | 105 | 45 | E | Capital E |
70 | 106 | 46 | F | Capital F |
71 | 107 | 47 | G | Capital G |
72 | 110 | 48 | H | Capital H |
73 | 111 | 49 | I | Capital I |
74 | 112 | 4A | J | Capital J |
75 | 113 | 4B | K | Capital K |
76 | 114 | 4C | L | Capital L |
77 | 115 | 4D | M | Capital M |
78 | 116 | 4E | N | Capital N |
79 | 117 | 4F | O | Capital O |
80 | 120 | 50 | P | Capital P |
81 | 121 | 51 | Q | Capital Q |
82 | 122 | 52 | R | Capital R |
83 | 123 | 53 | S | Capital S |
84 | 124 | 54 | T | Capital T |
85 | 125 | 55 | U | Capital U |
86 | 126 | 56 | V | Capital V |
87 | 127 | 57 | W | Capital W |
88 | 130 | 58 | X | Capital X |
89 | 131 | 59 | Y | Capital Y |
90 | 132 | 5A | Z | Capital Z |
91 | 133 | 5B | [ | Opening bracket |
92 | 134 | 5C | \ | Backslash |
93 | 135 | 5D | ] | Closing bracket |
94 | 136 | 5E | ^ | Caret |
95 | 137 | 5F | _ | Underscore |
96 | 140 | 60 | ‘ | Grave accent |
97 | 141 | 61 | a | Small a |
98 | 142 | 62 | b | Small b |
99 | 143 | 63 | c | Small c |
100 | 144 | 64 | d | Small d |
101 | 145 | 65 | e | Small e |
102 | 146 | 66 | f | Small f |
103 | 147 | 67 | g | Small g |
104 | 150 | 68 | h | Small h |
105 | 151 | 69 | i | Small i |
106 | 152 | 6A | j | Small j |
107 | 153 | 6B | k | Small k |
108 | 154 | 6C | l | Small l |
109 | 155 | 6D | m | Small m |
110 | 156 | 6E | n | Small n |
111 | 158 | 6F | o | Small o |
112 | 160 | 70 | p | Small p |
113 | 161 | 71 | q | Small q |
114 | 162 | 72 | r | Small r |
115 | 163 | 73 | s | Small s |
116 | 164 | 74 | t | Small t |
117 | 165 | 75 | u | Small u |
118 | 166 | 76 | v | Small v |
119 | 167 | 77 | w | Small w |
120 | 170 | 78 | x | Small x |
121 | 171 | 79 | y | Small y |
122 | 172 | 7A | z | Small z |
123 | 173 | 7B | { | Opening brace |
124 | 174 | 7C | | | Vertical bar |
125 | 175 | 7D | } | Closing brace |
126 | 176 | 7E | ~ | Tilde |
127 | 177 | 7F | DEL | Delete |
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