Browse Prior Art Database

Transmission Control Unit Input/Output Control Routine

IP.com Disclosure Number: IPCOM000076661D
Original Publication Date: 1972-Apr-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Sarno, GF: AUTHOR

Abstract

The Transmission Control Unit Adapter input/Output Control Routine (TCUAD IOCR) is a Multiprogramming Executive Operating System (MPX) type callable subroutine that assists, along with the system described in the article "PCOS: A Process Control Extension to Operating System/360", J. R. Calva, IBM Journal of Research and Development, Volume 14, No. 620 (1970), in performing the necessary communications between a satellite computer, e.g., IBM 1800, user application program and a central computer S/360 user applications program by means of a transmission system described in "A Transmission Control Unit for High Speed Computer Communications", F. W. Thoburn, IBM Journal of Research and Development, Volume 14, No. 614 (1970).

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Transmission Control Unit Input/Output Control Routine

The Transmission Control Unit Adapter input/Output Control Routine (TCUAD IOCR) is a Multiprogramming Executive Operating System (MPX) type callable subroutine that assists, along with the system described in the article "PCOS: A Process Control Extension to Operating System/360", J. R. Calva, IBM Journal of Research and Development, Volume 14, No. 620 (1970), in performing the necessary communications between a satellite computer, e.g., IBM 1800, user application program and a central computer S/360 user applications program by means of a transmission system described in "A Transmission Control Unit for High Speed Computer Communications", F. W. Thoburn, IBM Journal of Research and Development, Volume 14, No. 614 (1970).

Any IOCR in the MPX system enables use of and communications with I/O devices. In a like manner, the TCUAD IOCR enables the IBM 1800 satellite computer use of and communication with a central S/360 computer. In essence, the TCU adapter (in the 1800 computer), the TCU, and the central S/360 can be treated by the 1800 programmer like any other I/O device on the 1800 computer system.

The programs for the present system are described in detail in IBM Technical Report TR 22.964, February 20, 1970, published by the Components Division of International Business Machines Corporation.

1