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Under HTTP 1.0, connections should always be closed by the server after sending the response. [1]Since at least late 1995, [2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.
A launch window indicates the time frame on a given day within the launch period that the rocket can launch to reach its intended orbit. [8] [9] This can be as short as a second (referred to as an instantaneous window) or as long as the entire day. The launch window can straddle two calendar days (for example, starting at 11:46 p.m. and ending ...
It then loaded WIN100.BIN or WIN200.BIN and WIN100.OVL or WIN200.OVL, along with the configuration settings file WIN.INI. The default shell is the MS-DOS Executive . The modules GDI.EXE , KERNEL.EXE and USER.EXE , fonts, and the various device drivers (such as COMM.DRV , MOUSE.DRV , KEYBOARD.DRV ) are incorporated in WIN100.BIN / WIN200.BIN and ...
Tay, Mareels and Moore (1998) defined settling time as "the time required for the response curve to reach and stay within a range of certain percentage (usually 5% or 2%) of the final value." [ 2 ] Mathematical detail
A definite time over-current (DTOC) relay is a relay that operates after a definite period of time once the current exceeds the pickup value. Hence, this relay has current setting range as well as time setting range. An instantaneous over-current relay is an overcurrent relay which has no intentional time delay for operation. The contacts of ...
Modern implementations of real-time text also exist in instant messengers, such as AOL's Real-Time IM [25] as an optional feature. [ 26 ] In the latter half of the 1980s and into the early 1990s, the Quantum Link online service for Commodore 64 computers offered user-to-user messages between concurrently connected customers, which they called ...
When events are instantaneous, activities that extend over time are modeled as sequences of events. Some simulation frameworks allow the time of an event to be specified as an interval, giving the start time and the end time of each event. [citation needed] Single-threaded simulation engines based on instantaneous events have just one current ...
In most situations, the user does not want to just capture an absolute time that an event occurs, but wants to measure a time interval, i.e the time between a start event and a stop event. That can be done by measuring an arbitrary time of both the start and stop events and subtracting. The measurement can be off by two counts.