See “equipment availability.”

The period of time which a computer, piece of machinery, etc., is operational and available for use.

Uptime is a measure of reliability or efficiency that expresses either the duration of uninterrupted system availability in time units, or the percentage of total time for which there was uninterrupte [..]

The time during which a functional unit is fully operational.

strangely enough, the opposite of downtime

Opposite to Downtime. Time when a component, equipment or system is producing product. Note: The component, equipment or system may produce defect product or at a slower speed than usual.

A server's uptime is the time since it was last restarted; for a Unix system, the uptime shell command will give you this information, along with its load average; for an IRC server, use the /sta [..]

(n) a period of time when something (as a machine or factory) is functioning and available for use

the amount of time a computer spends up and running; often used as a measure of availability or reliability for servers. See downtime, five nines.

the measure of how long a site is viewable and useable. Downtime on a site may translate into poor customer experience and lost revenue.

Uptime is a metric that represents the percentage of time that hardware, an IT system or device is successfully operational. It refers to when a system is working, versus downtime, which refers to whe [..]

Display system uptime and average load, see Section 4.1.4

A clause in a contract that specifies that a delivered …

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

A period of time in which a robot, or production line is operating or available to operate, as opposed to downtime. See Downtime. Vacuum Cup Hand: An end-effector for a robot arm which is used to gras [..]