Accession Number : AD0691229

Title :   INTERFACE MESSAGE PROCESSORS FOR THE ARPA COMPUTER NETWORK.

Descriptive Note : Quarterly technical rept. no. 2, 1 Apr-30 Jun 69,

Corporate Author : BOLT BERANEK AND NEWMAN INC CAMBRIDGE MASS

Personal Author(s) : Heart,Frank E.

Report Date : JUL 1969

Pagination or Media Count : 20

Abstract : The basic function of the IMP computer network is to allow large existing time-shared (Host) computers with different system configurations to communicate with each other. Each IMP (Interface Message Processor) computer accepts messages for its Host from other Host computers and transmits messages from its Host to other Hosts. The hardware design was completed and a prototype IMP was received. This unit contains one IMP/Modem interface and one IMP/Host interface, as well as a normal complement of the other special features (real-time clock, watchdog timer, etc.). The prototype was checked out and has since been operating reliably. The software design has been substantially completed and the implementation of the initial operational IMP program is well underway. The report describes the organization of this program and presents preliminary plans for obtaining measurements. (Author)

Descriptors :   (*DIGITAL COMPUTERS, *DATA TRANSMISSION SYSTEMS), TIME SHARING, INTERFACES, COMPUTER PROGRAMMING

Subject Categories : Computer Programming and Software
      Computer Hardware
      Computer Systems
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE