Traffic Service Position System No. 1B: System Description

The 3B20 Duplex Processor (3B20D), with its associated Duplex Multi-Environment Real-Time (DMERT) operating system, meets the objectives of Traffic Service Position System No. IB (TSPS No. IB). 1-3 The 3B20D Processor is significantly faster than the Stored Program Control No. 1A (SPC 1A) and provides the required increase in processor capability. The ability of the 3B20D Processor to emulate allows the retention of most of the existing T S P S No. 1 software and peripheral hardware. In addition, the 3B20D Processor consumes much less energy and is significantly smaller in physical size than the SPC 1A.