E. Lohse – Communications of the ACM

Research and Advances Nov 1 1968

Correspondences of 8-bit and Hollerith codes for computer environments—a USASI tutorial

The correspondence tables in the document reflect USASCII standard code assignments as well as other codes. Comments that refer to the assignments of characters or character sets in columns 8 through 15 of Table 1 as a basis for standardization are solicited.

Author Archives

Research and Advances Jun 1 1968

Standards: Heading format for data transmission (A USAAI) tutorial

This paper is for information purposes and is intended as a comprehensive thought-provoking collection of the major aspects and considerations influencing Heading Format for Data Transmission. Information processing systems of today have outgrown the confines of the attended and isolated system environment. They now perform information interchange via communication networks, often with many real-time aspects. This interconnection of information processing systems via communciations networks requires that the two (or mo re) stations performing information interchange operate by agreed upon information formats. It is the intent of this paper to discuss the uses and organization of all known items that might be included in one type of information format: Heading Format. This paper is an attempt to provide an all-inclusive list of heading format items, thoroughly describle and discuss each item, and arrange the items in a logical sequence. This will establish a comprehensive heading format item sequencing list that individual message transfer systems may draw on to obtain consistent and usable message formats. It is not proposed that all heading format items or even that any one particular heading format item be mandatory for any system. This paper explores the implications of the use of heading format for generalized information generalized information interchaneg and the criteria on which a future heading format standard could be based. The following guidelines were used as a basis for the Task Group's work on message formats. The initial goal of the Task Group should be to prepare a tutorial paper on message formats. In the future, the Task Group may wish to prepare a standard covering message formats if this is found to be desirable. The Task Group should avoid message format (heading) definitions that are too narrow in scope; that is, a message heading should not be defined in such a manner that it is only applicable to a relatively small class of systems (e.g. store-and-forward). The doctrine for the use of message headings should be such that, by logical extension, it can meet the needs of communication systems that have different degrees of sophistication.

Research and Advances Apr 1 1968

Standards: Proposed USA Standard: Data code for calendar date for machine-to-machine data interchange

This proposed USA Standard presents a standard data code for a calendar date for use in the interchange if data from machine-to-machine among data systems.

Research and Advances Apr 1 1968

Hollerith punched card code

This proposed USA Standard presents the standard Hollerith Card Code representation of the 128 characters of USASCII in twelve-row punched cards. Other standards specify the dimensions and quality of punched paper ca rds, and the dimensions and locations of the holes punched in the cards. This coded representation of the USASCII character set for the twelve-row punched card was developed from research, review of historical work and careful consideration of the use of punched cares in information processing and communication. Resolution of several conflicting requirements is reflected herein.

Research and Advances Sep 1 1965

Character structure and character parity sense for serial-by-bit data communication in the American Standard Code for information interchange

ACM proposes to republish contents of Communications Algorithms section is useable looseleaf format, with bimonthly updating service, provided there is sufficient demand. For details, see News item on page 583.

Computing Applications

Opinion Jun 1 1964

Proposed american standard: bit sequencing of the american standard code for information interchange (ACSII) in serial-by-bit data transmission

Research and Advances Mar 1 1964

report on CCITT data communications study group meeting

Data communications was the subject of a two-week meeting held 24 September through 4 October 1963, in Geneva, Switzerland, by the International Telegraph and Telephone Consultative Committee (CCITT) Special Study Group A. Previous meetings of this group had been held in Geneva in April, 1960, and October, 1961. The CCITT has traditionally been responsible for all standardization activities involving the public telecommunications network of the world. Among the 150 participants, there were eleven USA representatives who represented the Government, various business machine companies and the common carriers.

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