Appendix A
American Standard Code for Information Interchange
| ASCII Value | Symbol | Description |
|---|---|---|
| 000 | (NUL) | Null char |
| 001 | ☺ (SOH) | Start of Heading |
| 002 | ☻ (STX) | Start of Text |
| 003 | ♥ (ETX) | End of Text |
| 004 | ♦ (EOT) | End of Transmission |
| 005 | ♣ (ENQ) | Enquiry |
| 006 | ♠ (ACK) | Acknowledgment |
| 007 | • (BEL) | Bell |
| 008 | ◘ (BS) | Back Space |
| 009 | ○ (HT) | Horizontal Tab |
| 010 | ◙ (LF) | Line Feed |
| 011 | ♂ (VT) | Vertical Tab |
| 012 | ♀ (FF) | Form Feed |
| 013 | ♪ (CR) | Carriage Return |
| 014 | ♫ (SO) | Shift Out / X-On |
| 015 | ☼ (SI) | Shift In / X-Off |
| 016 | ► (DLE) | Data Line Escape |
| 017 | ◄ (DC1) | Device Control 1 (often XON) |
| 018 | ↕ (DC2) | Device Control 2 |
| 019 | ‼ (DC3) | Device Control 3 (often XOFF) |
| 020 | ¶ (DC4) | Device Control 4 |
| 021 | § (NAK) | Negative Acknowledgement |
| 022 | ▬ (SYN) ... |
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