Browse Prior Art Database

ASCII format for network interchange (RFC0020)

IP.com Disclosure Number: IPCOM000004209D
Original Publication Date: 1969-Oct-01
Included in the Prior Art Database: 2015-Feb-06
Document File: 18 page(s) / 19K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

V.G. Cerf: AUTHOR

Abstract

For concreteness, we suggest the use of standard 7-bit ASCII embedded in an 8 bit byte whose high order bit is always 0. This leads to the standard code given on the attached page, copies from USAS X3, 4- 1968. This code will be used over HOST-HOST primary connections. Break characters will be defined by the receiving remote host, e.g. SRI uses "." (ASCII X'2E' or 2/14) as the end-of-line character, where as UCLA uses X'OD' or 0/13 (carriage return).

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 14% of the total text.

Network Working Group                                          Vint Cerf Request for Comments: 20                                            UCLA                                                         October 16, 1969

                   ASCII format for Network Interchange

   For concreteness, we suggest the use of standard 7-bit ASCII embedded    in an 8 bit byte whose high order bit is always 0.  This leads to the    standard code given on the attached page, copies from USAS X3, 4-    1968.  This code will be used over HOST-HOST primary connections.    Break characters will be defined by the receiving remote host, e.g.    SRI uses "." (ASCII X'2E' or 2/14) as the end-of-line character,    where as UCLA uses X'OD' or 0/13 (carriage return).

 USA Standard Code for Information Interchange

1. Scope

   This coded character set is to be used for the general interchange of    information among information processing systems, communication    systems, and associated equipment.

 Cert                                                            [Page 1]
 RFC 20            ASCII format for Network Interchange      October 1969

 2. Standard Code

|----------------------------------------------------------------------|

  B  \ b7 ------------>| 0   | 0   | 0   | 0   | 1   | 1   | 1   | 1   |

   I  \  b6 ---------->| 0   | 0   | 1   | 1   | 0   | 0   | 1   | 1   |

    T  \   b5 -------->| 0   | 1   | 0   | 1   | 0   | 1   | 0   | 1   |

     S                 |-----------------------------------------------|

               COLUMN->| 0   | 1   | 2   | 3   | 4   | 5   | 6   | 7   |

|b4 |b3 |b2 |b1 | ROW  |     |     |     |     |     |     |     |     |

+----------------------+-----------------------------------------------+

| 0 | 0 | 0 | 0 | 0    | NUL | DLE | SP  | 0   | @   | P   |   ` |   p |

|---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----|

| 0 | 0 | 0 | 1 | 1    | SOH | DC1 | !   | 1   | A   | Q   |   a |   q |

|---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----|

| 0 | 0 | 1 | 0 | 2    | STX | DC2 | "   | 2   | B   | R   |   b |   r |

|---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----|

| 0 | 0 | 1 | 1 | 3    | ETX | DC3 | #   | 3   | C   | S   |   c |   s |

|---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----|

| 0 | 1 | 0 | 0 | 4    | EOT | DC4 | $   | 4   | D   | T   |  d  |   t |

|---|---|---|---|------|-----|-----|-----|-----|-----|-----|-----|-----|

| 0 | 1 | 0 | 1 | 5    | ENQ | NAK | %  ...