Appendix A Table of ASCII Codes
| Oct | Dec | Hex | Char | 
| 000 | 0 | 00 | NUL ’\0’ (null character) | 
| 001 | 1 | 01 | SOH (start of heading) | 
| 002 | 2 | 02 | STX (start of text) | 
| 003 | 3 | 03 | ETX (end of text) | 
| 004 | 4 | 04 | EOT (end of transmission) | 
| 005 | 5 | 05 | ENQ (enquiry) | 
| 006 | 6 | 06 | ACK (acknowledge) | 
| 007 | 7 | 07 | BEL ’\a’ (bell) | 
| 010 | 8 | 08 | BS  ’\b’ (backspace) | 
| 011 | 9 | 09 | HT  ’\t’ (horizontal tab) | 
| 012 | 10 | 0A | LF  ’\n’ (new line) | 
| 013 | 11 | 0B | VT  ’\v’ (vertical tab) | 
| 014 | 12 | 0C | FF  ’\f’ (form feed) | 
| 015 | 13 | 0D | CR  ’\r’ (carriage ret) | 
| 016 | 14 | 0E | SO  (shift out) | 
| 017 | 15 | 0F | SI  (shift in) | 
| 020 | 16 | 10 | DLE (data link escape) | 
| 021 | 17 | 11 | DC1 (device control 1) | 
| 022 | 18 | 12 | DC2 (device control 2) | 
| 023 | 19 | 13 | DC3 (device control 3) | 
| 024 | 20 | 14 | DC4 (device control 4) | 
| 025 | 21 | 15 | NAK (negative ack.) | 
| 026 | 22 | 16 | SYN (synchronous idle) | 
| 027 | 23 | 17 | ETB (end of trans. blk) | 
| 030 | 24 | 18 | CAN (cancel) | 
| 031 | 25 | 19 | EM  (end of medium) | 
| 032 | 26 | 1A | SUB (substitute) | 
| 033 | 27 | 1B | ESC (escape) | 
| 034 | 28 | 1C | FS  (file separator) | 
| 035 | 29 | 1D | GS  (group separator) | 
| 036 | 30 | 1E | RS  (record separator) | 
| 037 | 31 | 1F | US  (unit separator) | 
| 040 | 32 | 20 | SPACE | 
| 041 | 33 | 21 | ! | 
| 042 | 34 | 22 | " | 
| 043 | 35 | 23 | # | 
| 044 | 36 | 24 | $ | 
| 045 | 37 | 25 | % | 
| 046 | 38 | 26 | & | 
| 047 | 39 | 27 | ’ | 
| 050 | 40 | 28 | ( | 
| 051 | 41 | 29 | ) | 
| 052 | 42 | 2A | * | 
| 053 | 43 | 2B | + | 
| 054 | 44 | 2C | , | 
| 055 | 45 | 2D | - | 
| 056 | 46 | 2E | . | 
| 057 | 47 | 2F | / | 
| 060 | 48 | 30 | 0 | 
| 061 | 49 | 31 | 1 | 
| 062 | 50 | 32 | 2 | 
| 063 | 51 | 33 | 3 | 
| 064 | 52 | 34 | 4 | 
| 065 | 53 | 35 | 5 | 
| 066 | 54 | 36 | 6 | 
| 067 | 55 | 37 | 7 | 
| 070 | 56 | 38 | 8 | 
| 071 | 57 | 39 | 9 | 
| 072 | 58 | 3A | : | 
| 073 | 59 | 3B | ; | 
| 074 | 60 | 3C | < | 
| 075 | 61 | 3D | = | 
| 076 | 62 | 3E | > | 
| 077 | 63 | 3F | ? | 
| 100 | 64 | 40 | @ | 
| 101 | 65 | 41 | A | 
| 102 | 66 | 42 | B | 
| 103 | 67 | 43 | C | 
| 104 | 68 | 44 | D | 
| 105 | 69 | 45 | E | 
| 106 | 70 | 46 | F | 
| 107 | 71 | 47 | G | 
| 110 | 72 | 48 | H | 
| 111 | 73 | 49 | I | 
| 112 | 74 | 4A | J | 
| 113 | 75 | 4B | K | 
| 114 | 76 | 4C | L | 
| 115 | 77 | 4D | M | 
| 116 | 78 | 4E | N | 
| 117 | 79 | 4F | O | 
| 120 | 80 | 50 | P | 
| 121 | 81 | 51 | Q | 
| 122 | 82 | 52 | R | 
| 123 | 83 | 53 | S | 
| 124 | 84 | 54 | T | 
| 125 | 85 | 55 | U | 
| 126 | 86 | 56 | V | 
| 127 | 87 | 57 | W | 
| 130 | 88 | 58 | X | 
| 131 | 89 | 59 | Y | 
| 132 | 90 | 5A | Z | 
| 133 | 91 | 5B | [ | 
| 134 | 92 | 5C | \  ’\\’ | 
| 135 | 93 | 5D | ] | 
| 136 | 94 | 5E | ^ | 
| 137 | 95 | 5F | _ | 
| 140 | 96 | 60 | ‘ | 
| 141 | 97 | 61 | a | 
| 142 | 98 | 62 | b | 
| 143 | 99 | 63 | c | 
| 144 | 100 | 64 | d | 
| 145 | 101 | 65 | e | 
| 146 | 102 | 66 | f | 
| 147 | 103 | 67 | g | 
| 150 | 104 | 68 | h | 
| 151 | 105 | 69 | i | 
| 152 | 106 | 6A | j | 
| 153 | 107 | 6B | k | 
| 154 | 108 | 6C | l | 
| 155 | 109 | 6D | m | 
| 156 | 110 | 6E | n | 
| 157 | 111 | 6F | o | 
| 160 | 112 | 70 | p | 
| 161 | 113 | 71 | q | 
| 162 | 114 | 72 | r | 
| 163 | 115 | 73 | s | 
| 164 | 116 | 74 | t | 
| 165 | 117 | 75 | u | 
| 166 | 118 | 76 | v | 
| 167 | 119 | 77 | w | 
| 170 | 120 | 78 | x | 
| 171 | 121 | 79 | y | 
| 172 | 122 | 7A | z | 
| 173 | 123 | 7B | { | 
| 174 | 124 | 7C | | | 
| 175 | 125 | 7D | } | 
| 176 | 126 | 7E | ~ | 
| 177 | 127 | 7F | DEL |