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n. (context computing English) The period of time a computer has functioned since last requiring a reboot.


n. a period of time when something (as a machine or factory) is functioning and available for use [ant: downtime]


Uptime is a measure of the time a machine, typically a computer, has been working and available. Uptime is the opposite of downtime.

It is often used as a measure of computer operating system reliability or stability, in that this time represents the time a computer can be left unattended without crashing, or needing to be rebooted for administrative or maintenance purposes. Conversely, long uptime may indicate negligence, because some critical updates can require reboots on some platforms.

UpTime (disk magazine)

UPTIME was a group of disk magazines for a variety of personal computing platforms that were published in the 1980s. Bill Kelly started UPTIME in his father's basement in 1984. The first issue was published in October 1984. Versions were issued for the Apple II, Macintosh, IBM PC, Commodore 64 and Commodore Amiga systems. Among the software that was published there were some of the earliest games created by John Romero. The magazine ceased publication in December 1988.

Usage examples of "uptime".

For a year or two the popular media had been full of articles about the Boskopoids as Homo superior, despite the unarguable fact that they had died out as a distinct group on all chronoplanes uptime from Luvah.

Uptime Chronologic Patrol Ship, commanded by Koffield, that survived the attack of the Intruders at Circum Central.

And every day, a thousand Trainable endos, Climbers, came uptime to help prepare Earth against Doomsday.

So they pay us a fortune, and pay the forgers even more for phony papers, just to live in some uptime dump full of rats.

Alamitos stood about where Santa Monica did fourteen thousand years uptime, but it was well inland and sheltered from the sea by a five-kilometer strip of dunes, chaparral, and scrub pine.

Both uptime and downtime ends of wormhole are guarded by Chronologic Patrol ships.

They had sent and received the standard arrival signal and mirror reply to the Chronologic Patrol ship on station, here on the uptime end of the timeshaft.

The only other visible object, aside from the stars in the sky, was a far-off dot of light that was the uptime Chronologic Patrol ship, one of the uptime-downtime pair guarding this wormhole.

They held their breath a bit harder and longer than normal as they passed the Chronologic Patrol ship on uptime station.

A group of half-grown boys in Frontier Town-- aw, nuts, looks like the uptime abandonees just cut class again-dashed out of a restaurant directly in his path, yelling and whooping in an excess of energy.

He wished desperately he could leave the Down Time and share his news with Ianira now, but he had several hours left on his shift and she would be in the middle of a session with an uptime graduate student, one of many who consulted-and paid-her as a singular, primary source.

Skeeter figured it beat having some uptime type throw a fit in the real downtime Denver, were more modern attitudes publicly and forcefully expressed would get a tourist into hot water fast.

Timeshaft Wormhole, transiting from downtime to uptime, past to future.