real timen.adj.adv.

Brit.

/ˈrɪəl ˌtʌɪm/, U.S.

/ˈri(ə)l ˌtaɪm/

Origin: Formed within English, by compounding. Etymons: real adj.², time n.

Etymology: < real adj.² + time n.

Chiefly Computing.

A. n.

The actual time during which a process or event occurs, esp. one analysed by a computer, in contrast to time subsequent to it when processing may be done, a recording replayed, etc. Frequently in in real time: performed or occurring in response to a process or event and virtually simultaneously with it.

ΘΚΠ

society > computing and information technology > programming language > programme execution > [noun] > time taken for

real time1946

run time1964

1946 J. P. Eckert in Moore School Lect. (1985) 394 An electronic computing machine..can function as either a true computing machine, or as a ‘real time’ computing machine since a sufficient speed to fit its time variable with real time is all that is required.

1953 Math. Tables & Other Aids Computation 7 73 With the advent of large-scale high-speed digital computers, there arises the question of their possible use in the solution of problems in ‘real time’, i.e., in conjunction with instruments receiving and responding to stimuli from the external environment.

1970 Nature 20 June 1110/2 The data are telemetered to ground-based stations which record the information on magnetic tape and provide a digital print-out in real time.

1981 J. Monaco How to read Film (rev. ed.) ii. 76 If..it shoots 240 frames per second instead of the standard twenty-four, then each second of recording time will stretch out over ten seconds of projected time, revealing details of motion that would be imperceptible in real time.

1987 S. Brand Media Lab i. vi. 116 It should be feasible to compute, incrementally, in real time, the solid mechanics for many thousands of small elastic bodies.

2005 C. Stross Accelerando ii. 45 He pipes the image stream up to one of his websites in real time.

B. adj. (originally and chiefly attributive).

Designating or relating to a system in which input data is processed so quickly so that it is available virtually immediately as feedback to the process from which it emanates, e.g. in a missile guidance system; occurring or available in real time.

ΚΠ

1953 Math. Tables & Other Aids Computation 7 73 The criteria for satisfactory operation in such real-time service are different from those generally encountered.

1960 N.Y. Times 17 July 13/4 Air Force and Weather Bureau meteorologists attempted to use the pictures to make ‘real time’ forecasts of the weather—forecasts fresh enough to be useful.

1968 Times 1 Nov. 23/6 Computers have been slow to conquer the real-time control of industrial processes and traffic flows.

1983 J. Varley Millennium iv. 82 It wasn't real-time yet.

1985 Pract. Computing May 118/2 It offers real-time information on share prices.

1993 Byte Mar. 116/1 If the authoring system is real-time, it lets several participants edit a document at the same time.

1997 J. Hagel & A. G. Armstrong Net.gain ii. vii. 159 Hosts manage member-generated content, which includes bulletin boards, chat areas, and real-time on-line events.

C. adv.

In real time.

ΘΚΠ

the world > time > relative time > simultaneity or contemporaneousness > [adverb]

on (or in) one sitheeOE

togethersc1175

togetherc1200

at once?c1225

at one shiftc1325

jointly1362

at one strokec1374

with that ilkec1390

at one shipea1400

withc1440

at a timec1485

at (in) one (an) instant1509

all at a shove1555

pari passu1567

in (also at, with) one breath1590

in that ilkec1590

with the same1603

in one1616

concurrently1648

concurringly1650

contemporarily1669

simultaneously1675

synchronistically1684

coevallya1711

in (also with) the same breath1721

synchronically1749

at a slap1753

synchronously1793

contemporaneously1794

coinstantaneously1807

coetaneouslya1817

consentaneously1817

at one or a sweep1834

coincidentally1837

at the very nonce1855

one time1873

coincidently1875

in parallel1969

real time1993

1993 Accountancy Oct. 46/1 We want to do most of our order processing real time over the telephone.

2007 Eye Spy No. 48. 60/2 If the information needs transmitting ‘real time’ to colleagues, the stakes are raised again.

This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).

单词	real time
释义	real timen.adj.adv. Brit. /ˈrɪəl ˌtʌɪm/, U.S. /ˈri(ə)l ˌtaɪm/ Origin: Formed within English, by compounding. Etymons: real adj.², time n. Etymology: < real adj.² + time n. Chiefly Computing. A. n. The actual time during which a process or event occurs, esp. one analysed by a computer, in contrast to time subsequent to it when processing may be done, a recording replayed, etc. Frequently in in real time: performed or occurring in response to a process or event and virtually simultaneously with it. ΘΚΠ society > computing and information technology > programming language > programme execution > [noun] > time taken for real time1946 run time1964 1946 J. P. Eckert in Moore School Lect. (1985) 394 An electronic computing machine..can function as either a true computing machine, or as a ‘real time’ computing machine since a sufficient speed to fit its time variable with real time is all that is required. 1953 Math. Tables & Other Aids Computation 7 73 With the advent of large-scale high-speed digital computers, there arises the question of their possible use in the solution of problems in ‘real time’, i.e., in conjunction with instruments receiving and responding to stimuli from the external environment. 1970 Nature 20 June 1110/2 The data are telemetered to ground-based stations which record the information on magnetic tape and provide a digital print-out in real time. 1981 J. Monaco How to read Film (rev. ed.) ii. 76 If..it shoots 240 frames per second instead of the standard twenty-four, then each second of recording time will stretch out over ten seconds of projected time, revealing details of motion that would be imperceptible in real time. 1987 S. Brand Media Lab i. vi. 116 It should be feasible to compute, incrementally, in real time, the solid mechanics for many thousands of small elastic bodies. 2005 C. Stross Accelerando ii. 45 He pipes the image stream up to one of his websites in real time. B. adj. (originally and chiefly attributive). Designating or relating to a system in which input data is processed so quickly so that it is available virtually immediately as feedback to the process from which it emanates, e.g. in a missile guidance system; occurring or available in real time. ΚΠ 1946 J. P. Eckert in Moore School Lect. (1985) 394 An electronic computing machine..can function as either a true computing machine, or as a ‘real time’ computing machine since a sufficient speed to fit its time variable with real time is all that is required. 1953 Math. Tables & Other Aids Computation 7 73 The criteria for satisfactory operation in such real-time service are different from those generally encountered. 1960 N.Y. Times 17 July 13/4 Air Force and Weather Bureau meteorologists attempted to use the pictures to make ‘real time’ forecasts of the weather—forecasts fresh enough to be useful. 1968 Times 1 Nov. 23/6 Computers have been slow to conquer the real-time control of industrial processes and traffic flows. 1983 J. Varley Millennium iv. 82 It wasn't real-time yet. 1985 Pract. Computing May 118/2 It offers real-time information on share prices. 1993 Byte Mar. 116/1 If the authoring system is real-time, it lets several participants edit a document at the same time. 1997 J. Hagel & A. G. Armstrong Net.gain ii. vii. 159 Hosts manage member-generated content, which includes bulletin boards, chat areas, and real-time on-line events. C. adv. In real time. ΘΚΠ the world > time > relative time > simultaneity or contemporaneousness > [adverb] on (or in) one sitheeOE togethersc1175 togetherc1200 at once?c1225 at one shiftc1325 jointly1362 at one strokec1374 with that ilkec1390 at one shipea1400 withc1440 at a timec1485 at (in) one (an) instant1509 all at a shove1555 pari passu1567 in (also at, with) one breath1590 in that ilkec1590 with the same1603 in one1616 concurrently1648 concurringly1650 contemporarily1669 simultaneously1675 synchronistically1684 coevallya1711 in (also with) the same breath1721 synchronically1749 at a slap1753 synchronously1793 contemporaneously1794 coinstantaneously1807 coetaneouslya1817 consentaneously1817 at one or a sweep1834 coincidentally1837 at the very nonce1855 one time1873 coincidently1875 in parallel1969 real time1993 1993 Accountancy Oct. 46/1 We want to do most of our order processing real time over the telephone. 2007 Eye Spy No. 48. 60/2 If the information needs transmitting ‘real time’ to colleagues, the stakes are raised again. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < n.adj.adv.1946
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