ASCII stands for American Standard Code for Information Interchange.The ASCII character set contains 128 coded characters. Each ASCII character is a 7-bit coded unique character; 8 bits when a parity check bit is included. The ASCII character set consists of control characters and graphic characters. When considered simply as a set of 128 unique bit patterns, or 256 with a parity bit, disassociated from the character equivalences in national implementations, the ASCII may be considered as an alphabet used in machine languages.
American Standard Code for Information Interchange [ASCII]
| Dec | Hex | Char | Description | Dec | Hex | Char | Dec | Hex | Char | Dec | Hex | Char |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00 | 00 | NUL | (null) | 32 | 20 | SP | 64 | 40 | @ | 96 | 60 | ` |
| 01 | 01 | SOH | (start of heading) | 33 | 21 | ! | 65 | 41 | A | 97 | 61 | a |
| 02 | 02 | STX | (start of text) | 34 | 22 | “ | 66 | 42 | B | 98 | 62 | b |
| 03 | 03 | ETX | (end of text) | 35 | 23 | # | 67 | 43 | C | 99 | 63 | c |
| 04 | 04 | EOT | (end of transmission) | 36 | 24 | $ | 68 | 44 | D | 100 | 64 | d |
| 05 | 05 | ENQ | (enquiry) | 37 | 25 | % | 69 | 45 | E | 101 | 65 | e |
| 06 | 06 | ACK | (acknowledge) | 38 | 26 | & | 70 | 46 | F | 102 | 66 | f |
| 07 | 07 | BEL | (bell) | 39 | 27 | ‘ | 71 | 47 | G | 103 | 67 | g |
| 08 | 08 | BS | (back space) | 40 | 28 | ( | 72 | 48 | H | 104 | 68 | h |
| 09 | 09 | TAB | (horizontal tab) | 41 | 29 | ) | 73 | 49 | I | 105 | 69 | i |
| 10 | 0A | LF | (NL line feed, new line) | 42 | 2A | * | 74 | 4A | J | 106 | 6A | j |
| 11 | 0B | VT | (vertical tab) | 43 | 2B | + | 75 | 4B | K | 107 | 6B | k |
| 12 | 0C | FF | (NP form feed, new page) | 44 | 2C | , | 76 | 4C | L | 108 | 6C | l |
| 13 | 0D | CR | (carriage return) | 45 | 2D | - | 77 | 4D | M | 109 | 6D | m |
| 14 | 0E | SO | (shift out) | 46 | 2E | . | 78 | 4E | N | 110 | 6E | n |
| 15 | 0F | SI | (shift in) | 47 | 2F | / | 79 | 4F | O | 111 | 6F | o |
| 16 | 10 | DLE | (data link escape) | 48 | 30 | 0 | 80 | 50 | P | 112 | 70 | p |
| 17 | 11 | DC1 | (device control 1) | 49 | 31 | 1 | 81 | 51 | Q | 113 | 71 | q |
| 18 | 12 | DC2 | (device control 2) | 50 | 32 | 2 | 82 | 52 | R | 114 | 72 | r |
| 19 | 13 | DC3 | (device control 3) | 51 | 33 | 3 | 83 | 53 | S | 115 | 73 | s |
| 20 | 14 | DC4 | (device control 4) | 52 | 34 | 4 | 84 | 54 | T | 116 | 74 | t |
| 21 | 15 | NAK | (do not acknowledge) | 53 | 35 | 5 | 85 | 55 | U | 117 | 75 | u |
| 22 | 16 | SYN | (synchronous idle) | 54 | 36 | 6 | 86 | 56 | V | 118 | 76 | v |
| 23 | 17 | ETB | (end of transmission block) | 55 | 37 | 7 | 87 | 57 | W | 119 | 77 | w |
| 24 | 18 | CAN | (cancel) | 56 | 38 | 8 | 88 | 58 | X | 120 | 78 | x |
| 25 | 19 | EM | (end of medium) | 57 | 39 | 9 | 89 | 59 | Y | 121 | 79 | y |
| 26 | 1A | SUB | (substitute) | 58 | 3A | : | 90 | 5A | Z | 122 | 7A | z |
| 27 | 1B | ESC | (escape) | 59 | 3B | ; | 91 | 5B | [ | 123 | 7B | { |
| 28 | 1C | FS | (file separator) | 60 | 3C | < | 92 | 5C | 124 | 7C | | | |
| 29 | 1D | GS | (group separator) | 61 | 3D | = | 93 | 5D | ] | 125 | 7D | } |
| 30 | 1E | RS | (record separator) | 62 | 3E | > | 94 | 5E | ^ | 126 | 7E | ~ |
| 31 | 1F | US | (unit separator) | 63 | 3F | ? | 95 | 5F | _ | 127 | 7F | DEL |
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