ChorusOS Sun Microsystems Operating System
... Time Services o Timers: One-shot or periodic, usable from both supervisor and user-mode applications o Time of day: Universal time o Real Time Clock (RTC) ...
... Time Services o Timers: One-shot or periodic, usable from both supervisor and user-mode applications o Time of day: Universal time o Real Time Clock (RTC) ...
Systems Integration
... • Good for high speed communications between devices (100MBPS and rising) • Good for networks of all kinds • Internet/Intranet • Telecommunications • Some appliances are beginning to incorporate • Some A.V. equipment ...
... • Good for high speed communications between devices (100MBPS and rising) • Good for networks of all kinds • Internet/Intranet • Telecommunications • Some appliances are beginning to incorporate • Some A.V. equipment ...
Communications-based train control
Communications-based train control (CBTC) is a railway signaling system that makes use of the telecommunications between the train and track equipment for the traffic management and infrastructure control. By means of the CBTC systems, the exact position of a train is known more accurately than with the traditional signaling systems. This results in a more efficient and safe way to manage the railway traffic. Metros (and other railway systems) are able to improve headways while maintaining or even improving safety.A CBTC system is a ""continuous, automatic train control system utilizing high-resolution train location determination, independent of track circuits; continuous, high-capacity, bidirectional train-to-wayside data communications; and trainborne and wayside processors capable of implementing Automatic Train Protection (ATP) functions, as well as optional Automatic Train Operation (ATO) and Automatic Train Supervision (ATS) functions."", as defined in the IEEE 1474 standard.