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Coding ~ ASCII - Character Symbols - Control
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ASCII = “American Standard Code for Information Interchange”
Designed in the early 60's as a standard character set for computers and hardware devices.
ASCII is a 7-bit character set containing 128 characters.
ASCII Device Control Characters
The ASCII device control characters were originally designed to control hardware devices.
Control characters do nothing inside an HTML document.
| ASCII Character |
HTML Entity Code |
Description |
| NUL |
� |
null character |
| SOH |
 |
start of header |
| STX |
 |
start of text |
| ETX |
 |
end of text |
| EOT |
 |
end of transmission |
| ENQ |
 |
enquiry |
| ACK |
 |
acknowledge |
| BEL |
 |
bell (ring) |
| BS |
 |
backspace |
| HT |
	 |
horizontal tab |
| LF |
|
line feed |
| VT |
 |
vertical tab |
| FF |
 |
form feed |
| CR |
|
carriage return |
| SO |
 |
shift out |
| SI |
 |
shift in |
| DLE |
 |
data link escape |
| DC1 |
 |
device control 1 |
| DC2 |
 |
device control 2 |
| DC3 |
 |
device control 3 |
| DC4 |
 |
device control 4 |
| NAK |
 |
negative acknowledge |
| SYN |
 |
synchronize |
| ETB |
 |
end transmission block |
| CAN |
 |
cancel |
| EM |
 |
end of medium |
| SUB |
 |
substitute |
| ESC |
 |
escape |
| FS |
 |
file separator |
| GS |
 |
group separator |
| RS |
 |
record separator |
| US |
 |
unit separator |
| |
|
|
| DEL |
 |
delete (rubout) |
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