The first 32 characters (0-31) are control codes.
0 NUL Null 33 ! 65 A 97 a
1 SOH Start of heading 34 " 66 B 98 b
2 STX Start of text 35 # 67 C 99 c
3 ETX End of text 36 $ 68 D 100 d
4 EOT End of transmit 37 % 69 E 101 e
5 ENQ Enquiry 38 & 70 F 102 f
6 ACK Acknowledge 39 ' 71 G 103 g
7 BEL Audible bell 40 ( 72 H 104 h
8 BS Backspace 41 ) 73 I 105 i
9 HT Horizontal tab 42 * 74 J 106 j
10 LF Line feed 43 + 75 K 107 k
11 VT Vertical tab 44 , 76 L 108 l
12 FF Form feed 45 - 77 M 109 m
13 CR Carriage return 46 . 78 N 110 n
14 SO Shift out 47 / 79 O 111 o
15 SI Shift in 48 0 80 P 112 p
16 DLE Data link escape 49 1 81 Q 113 q
17 DC1 Device control 1 50 2 82 R 114 r
18 DC2 Device control 2 51 3 83 S 115 s
19 DC3 Device control 3 52 4 84 T 116 t
20 DC4 Device control 4 53 5 85 U 117 u
21 NAK Neg. acknowledge 54 6 86 V 118 v
22 SYN Synchronous idle 55 7 87 W 119 w
23 ETB End trans. block 56 8 88 X 120 x
24 CAN Cancel 57 9 89 Y 121 y
25 EM End of medium 58 : 90 Z 122 z
26 SUB Substitution 59 ; 91 [ 123 {
27 ESC Escape 60 < 92 \ 124 |
28 FS Figures shift 61 = 93 ] 125 }
29 GS Group separator 62 > 94 ^ 126 ~
30 RS Record separator 63 ? 95 _ 127
31 US Unit separator 64 @ 96 `
32 SP Blank Space (Space Bar)