NOSC UNIBUS (Tradmark) UNIVAC Input/Output Controller.
Abstract
The NOSC-developed UNIBUS/UNIVAC compatible Input/Output Controller (IOC) is designed to provide any host computer supporting the Digital Equipment Corp. UNIBUS configuration with an Input/Output (I/O) channel whose protocol, timing, and electrical interface specifications are compatible with standard NTDS FAST and Univac 1100 series I/O channels. In addition, true differential I/O operation is provided for use in systems where this is supported or where intercomputer grounding problems exist. The IOC can operate when connected to either a peripheral I/O device such as a line printer or a card reader (normal mode), or the I/O channel of another computer (intercomputer mode). The mode is software selectable. By using IOCs in multiple hosts, parallel intercomputer channels may be readily established between them. Unless specifically noted otherwise, the device connected to; the IOC will be referred to as the I/O subsystem regardless of the mode being used. The computer housing the IOC will be referred to as the host. Keywords: Input/output signals.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1985
- Accession Number
- ADA159802
Entities
People
- R. Mitchell