Figure 1-5 ASCII code. Glenn A. Gibson, Yu-Cheng Liu, MICROCOMPUTERS FOR ENGINEERS AND SCIENTISTS © 1980, Prentice-Hall, Inc.

ASCII Char.	Hex. Code	Control Character		ASCII Char.	Hex. Code	Control Character		ASCII Char.	Hex. Code	Control Character
NULL	00	Null		+	2B			V	56
SOH	01	Start heading		,	2C			W	57
STX	02	Start text		-	2D			X	58
ETX	03	End text		.	2E			Y	59
EOT	04	End of transmission		/	2F			Z	5A
ENQ	05	Inquiry		0	30			[	5B
ACK	06	Acknowledgment		1	31			\	5C
BEL	07	Bell		2	32			]	5D
BS	08	Backspace		3	33			^	5E
HT	09	Horizontal tab		4	34			_	5F
LF	0A	Line feed		5	35			`	60
VT	0B	Vertical tab		6	36			a	61
FF	0C	Form feed		7	37			b	62
CR	0D	Carriage return		8	38			c	63
SO	0E	Shift out		9	39			d	64
SI	0F	Shift in		:	3A			e	65
DLE	10	Data link escape		;	3B			f	66
DC1	11	Device control 1		<	3C			g	67
DC2	12	Device control 2		=	3D			h	68
DC3	13	Device control 3		>	3E			i	69
DC4	14	Device control 4		?	3F			j	6A
NAK	15	Neg. acknowledge		@	40			k	6B
SYN	16	Synchronous/Idle		A	41			l	6C
ETB	17	End trans. block		B	42			m	6D
CAN	18	Cancel data		C	43			n	6E
EM	19	End of medium		D	44			o	6F
SUB	1A	Start special seq.		E	45			p	70
ESC	1B	Escape		F	46			q	71
FS	1C	File separator		G	47			r	72
GS	1D	Group separator		H	48			s	73
RS	1E	Record separator		I	49			t	74
US	1F	Unit separator		J	4A			u	75
SP	20	Space		K	4B			v	76
!	21			L	4C			w	77
"	22			M	4D			x	78
#	23			N	4E			y	79
$	24			O	4F			z	7A
%	25			P	50			{	7B
&	26			Q	51			|	7C
'	27			R	52			}	7D
(	28			S	53			~	7E
)	29			T	54			DEL	7F	Delete-rubout
*	2A			U	55

As an example, the character string

DOE,
JOHN P.-50

would correspond to the following string of bit combinations (given in hexadecimal):

             |-------------------------Carriage return
             |  |----------------------Line feed
             |  |              |-------Space
             |  |              |
44 4F 45 2C 0D 0A 4A 4F 48 4E 20 50 2E 2D 35 30
 D  O  E  ,        J  O  H  N     P  .  -  5  0

Figure 1-6 ASCII character being transmitted to a computer.

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