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Time-triggered systems can be viewed as a subset of a more general event-triggered (ET) system architecture (see event-driven programming).. Implementation of an ET system will typically involve use of multiple interrupts, each associated with specific periodic events (such as timer overflows) or aperiodic events (such as the arrival of messages over a communication bus at random points in time).
A watchdog timer (WDT, or simply a watchdog), sometimes called a computer operating properly timer (COP timer), [1] is an electronic or software timer that is used to detect and recover from computer malfunctions. Watchdog timers are widely used in computers to facilitate automatic correction of temporary hardware faults, and to prevent errant ...
In computing, an event is a detectable occurrence or change in the system's state, such as user input, hardware interrupts, system notifications, or changes in data or conditions, that the system is designed to monitor. Events trigger responses or actions and are fundamental to event-driven systems.
The High Precision Event Timer (HPET) is a hardware timer available in modern x86-compatible personal computers. Compared to older types of timers available in the x86 architecture, HPET allows more efficient processing of highly timing-sensitive applications, such as multimedia playback and OS task switching .
A trigger in Sedna is set on any nodes of an XML document stored in database. When these nodes are updated, the trigger automatically executes XQuery queries and updates specified in its body. For example, the following trigger cancels person node deletion if there are any open auctions referenced by this person:
Docs.com was a public document sharing service where Office users can upload and share Word, Excel, PowerPoint, Sway and PDF files for the whole world to discover and use. Entourage was an Outlook counterpart on macOS, Microsoft discontinued it in favor of extending the Outlook brand name.
These malicious macros may start automatically when a document is opened or closed, without the user's knowledge. [2] Once a file containing a macro virus is opened, the virus can infect the system. When triggered, it will begin to embed itself in other documents and templates.
QuarkXPress also offers the ability for composite work-flows, both with PostScript and PDF output. QuarkXPress offers layout synchronization, multiple undo/redo functionality, XML and web page features, and support for direct PDF import and output. Documents can be verified before printing. This high-level print preview automatically identifies ...