A System of Software for the TRIAD Flight Computer.
Abstract
The TRIAD satellite provided APL with its first opportunity to fly a general-purpose digital computer. The paper presents the system of software that was written to develop, test, and operate the APL-designed TRIAD computer. After a description of the machine's real-time flight requirements and its physical properties, the major software projects are discussed. These include the formulation of: Programming language, called ARTIC, and an associated assembler; special-purpose diagnostic and utility programs; a real-time simulation of the expected satellite hardware environment; an in-flight operating system, called LDR, capable of coping with various real-time operational demands. Lastly, the actual performance and utility of the computer after launch is summarized. TRIAD exemplifies the value of a small, programmable computer in managing and supporting complex satellite missions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1973
- Accession Number
- AD0766455
Entities
People
- H. K. Utterback
- M. R. Newcomer
- R. S. Yuhasz
Organizations
- Johns Hopkins University Applied Physics Laboratory