real-time
UK[ˈrɪəl taɪm]US[ˈriəl taɪm]
adj
relating to or denoting a system in which input data is processed within milliseconds so that it is available virtually immediately as feedback to the process from which it is coming, e.g., in computer-controlled machinery or for online transaction processing.
adj
occurring or presented at the same time as the event or process being described.
Morpheme Breakdown
real
time
real
actual
time
temporal measure
Etymology
The term 'real-time' is a modern English compound, formed by combining the adjective 'real' with the noun 'time'. 'Real' originates from the Latin res, meaning 'thing' or 'matter', which evolved to signify something genuine or not artificial. 'Time' has deep Germanic roots, from Old English tīma, related to the concept of a measured or measurable period. The compound emerged in the mid-20th century, primarily in computing and data processing, to describe systems where data is processed and presented with virtually no delay, so that the information reflects the 'actual' or 'real' state of affairs at that precise moment in 'time'. It logically bridges the literal sense of 'actual time' to the abstract technical meaning of instantaneous processing and feedback.
Analysis
Structure: real (actual) + time (temporal measure)
real: From Latin realis (relating to things), from res (thing, matter). In this compound, it functions as an adjective meaning 'actual' or 'immediate'.
time: From Old English tīma (a period, season, era). In this compound, it functions as a noun indicating a temporal dimension.
Examples
The software provides real-time updates on traffic conditions.
The air traffic control system relies on real-time radar data.
We watched a real-time broadcast of the rocket launch.