ZyXEL Communications Prestige 861H-G1, User Manual

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Prestige 861H User’s Guide
ASCII Characters E-1
Appendix E
ASCII Characters
This appendix tells you about ASCII (American Standard Code for Information Interchange)
characters.
ASCII Code
Computers use ASCII code to represent binary (0 or 1) as letters and other characters.
The ASCII code is a list that contains all the letters in the alphabet plus other additional
characters. In this code the same order number always represents each character. For example, in
ASCII code the capital letter
A is always represented by the order number 65, which is easily
represented using 0’s and 1’s in binary (1000001).
The standard ASCII code defines 128 character codes (from 0 to 127), of which, the first 32 are
control codes (non-printable), and the other 96 are representable (printable) characters:
*
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 NUL SOH STX ETX EOT ENQ ACK BEL BS TAB LF VT FF CR SO SI
1 DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US
2
! " # $ % & ' ( ) * + , - . /
3 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
4 @ A B C D E F G H I J K L M N O
5 P Q R S T U V W X Y Z [ \ ] ^ _
6 ` a b c d e f g h i j k l m n o
7 p q r s t u v w x y z { | } ~
*
This panel is organized in hexadecimal: row numbers represent the first digit and the column
numbers represent the second digit. For example, the A character is located at the 4
th
row and the
1
st
column, which is represented in hexadecimal as 0x41 ( 65 ).