[http://en.wikipedia.org/wiki/Real-time_computing Reference: Real-time technology]
 
[http://en.wikipedia.org/wiki/Real-time_computing Reference: Real-time technology]
   −
A system is said to be real-time if the total correctness of an operation depends not only upon its logical correctness, but also upon the time in which it is performed. Real-time systems, as well as their deadlines, are classified by the consequence of missing a deadline.
+
A system is said to be real-time if the total correctness of an operation depends not only upon its logical correctness, but also upon the time in which it is performed. In other words, the time taken to complete an operation in real-time systems can be expressed in an algebraic equation. Real-time systems, as well as their deadlines, are classified by the consequence of missing a deadline.
    
'''Hard'''
 
'''Hard'''
 
* Feasibility
 
* Feasibility
   Unexpected non-MediaWiki exception encountered, of type "Error"
[91c4aef2] /swbwiki/index.php?title=Introduction&diff=565&oldid=555 Exception from line 436 of /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php: Call to undefined function each()
Backtrace:
#0 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(546): DiffEngine->diag()
#1 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(347): DiffEngine->compareSeq()
#2 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(228): DiffEngine->diffLocal()
#3 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(725): DiffEngine->diff()
#4 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(864): Diff->__construct()
#5 /var/www/html/mediawiki-1.23.3/includes/diff/DairikiDiff.php(987): MappedDiff->__construct()
#6 /var/www/html/mediawiki-1.23.3/includes/diff/TableDiffFormatter.php(193): WordLevelDiff->__construct()
#7 /var/www/html/mediawiki-1.23.3/includes/diff/DiffFormatter.php(143): TableDiffFormatter->changed()
#8 /var/www/html/mediawiki-1.23.3/includes/diff/DiffFormatter.php(112): DiffFormatter->block()
#9 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(910): DiffFormatter->format()
#10 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(813): DifferenceEngine->generateTextDiffBody()
#11 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(743): DifferenceEngine->generateContentDiffBody()
#12 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(665): DifferenceEngine->getDiffBody()
#13 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(635): DifferenceEngine->getDiff()
#14 /var/www/html/mediawiki-1.23.3/includes/diff/DifferenceEngine.php(443): DifferenceEngine->showDiff()
#15 /var/www/html/mediawiki-1.23.3/includes/Article.php(826): DifferenceEngine->showDiffPage()
#16 /var/www/html/mediawiki-1.23.3/includes/Article.php(549): Article->showDiffPage()
#17 /var/www/html/mediawiki-1.23.3/includes/actions/ViewAction.php(44): Article->view()
#18 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(428): ViewAction->show()
#19 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(292): MediaWiki->performAction()
#20 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(588): MediaWiki->performRequest()
#21 /var/www/html/mediawiki-1.23.3/includes/Wiki.php(447): MediaWiki->main()
#22 /var/www/html/mediawiki-1.23.3/index.php(46): MediaWiki->run()
#23 {main}