Dale - Computer Science Illuminated 284

Dale - Computer Science Illuminated 284 - 8.3 Functionality...

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Asynchronous Not occurring at the same moment in time as some specific operation of the computer; in other words, not synchronized with the program’s actions. 8.3 Functionality of Imperative Languages 257 program. The program must recognize when a mouse click has occurred, process the mouse click, and then continue. This type of processing is called asynchronous , which means “not at the same time.” The mouse can be clicked at any time; it is not synchronized with any other instructions. Asynchronous processing is also called event-driven processing. The processing is under the control of events happening outside the sequence of program instructions. Asynchronous processing is used frequently in Java and VB.NET, but less so in the other languages. Although Ada does use asynchronous processing extensively in embedded systems such as Flight Management Systems software, where the events are such things as button and switch changes made in the cockpit, sensors onboard the aircraft, and signals
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This note was uploaded on 01/13/2011 for the course CSE 1550 taught by Professor Marianakant during the Fall '10 term at York University.

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