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Standard file formats (RFC0678)

IP.com Disclosure Number: IPCOM000003728D
Original Publication Date: 1974-Dec-19
Included in the Prior Art Database: 2000-Sep-13
Document File: 7 page(s) / 12K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR

Abstract

In an attempt to provide online documents to the network community we have had many problems with the physical format of the final documents. Much of this difficulty lies in the fact that we do not have control or even knowledge of all the processing steps or devices that act on the document file. A large part of the difficulty in the past has been due to some assumptions we made about the rest of the world being approximately like our own environment. We now see that the problems are due to differing assumptions and treatment of files to be printed as documents. We therefore propose to define certain standard formats for files and describe the expected final form for printed copies of such files.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 24% of the total text.

Network Working Group J. Postel

Request for Comments: 678 (SRI-ARC)

NIC: 31524 19 December 1974

Standard File Formats

Introduction

In an attempt to provide online documents to the network community we

have had many problems with the physical format of the final

documents. Much of this difficulty lies in the fact that we do not

have control or even knowledge of all the processing steps or devices

that act on the document file. A large part of the difficulty in the

past has been due to some assumptions we made about the rest of the

world being approximately like our own environment. We now see that

the problems are due to differing assumptions and treatment of files

to be printed as documents. We therefore propose to define certain

standard formats for files and describe the expected final form for

printed copies of such files.

These standard formats are not additional File Transfer Protocol data

types/modes/structures, but rather usage descriptions between the

originator and ultimate receiver of the file. It may be useful or

even necessary at some hosts to construct programs that convert files

between common local formats and the standard formats specified here.

The intent is that the author of a document may prepare his/her text

and store it in an online file, then advertise that file by name and

format (as specified here), such that interested individuals may copy

and print the file with full understanding of the characteristics of

the format controls and the logical page size.

Standardization Elements

The elements or aspects of a file to be standardized are the

character or code set used, the format control procedures, the area

of the page to be used for text, and the method to describe

overstruck or underlined characters.

The area of the page to be used for text can be confusing to discuss,

in an attempt to be clear we define a physical page and a logical

page. Please note that the main emphasis of this note is to describe

the standard formats in terms of the logical page, and that it is up

to each site to map the logical page onto the physical page of each

of their devices.

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Standard File Formats

Standardization Elements

Physical Page

The physical page is the medium that carries the text, the

height and width of its area are measured in inches.

The typical physical page is a piece of paper eleven inches

high and eight and one half inches wide.

Typical print density is 10 characters per inch

horizontally and 6 characters per inch vertically. This

results in the typical physical page having a maximum

capacity of 66...