real-time

In computer science, real-time computing (RToC) is the study of hardware and software systems which are subject to a "real-time constraint"—i.e., operational deadlines from event to system response. By contrast, a non-real-time system is one for which there is no deadline, even if fast response or high performance is desired or even preferred. The needs of real-time software are often addressed in the context of real-time operating systems, and synchronous programming languages, which provide frameworks on which to build real-time application software.
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Noun
1. the actual time that it takes a process to occur; "information is updated in real time"
(hypernym) time period, period of time, period
2. (computer science) the time it takes for a process under computer control to occur
(hypernym) time period, period of time, period
(classification) computer science, computing

Adjective
1. of or relating to computer systems that update information at the same rate they receive information
(pertainym) real time
(classification) computer science, computing

current, as with quotes or news; opposite of delayed.