cold start

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cold start

[′kōld ′stärt]
(computer science)
To start running a computer program from the very beginning, without being able to continue the processing that was occurring previously when the system was interrupted.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

cold boot

Starting the computer when its power is turned off. To perform a cold boot if the computer is running, select Shut Down. Once the machine is off, turning it back on performs the cold boot.

If the computer locks up, a cold boot is necessary because a restart ("warm boot") may not be sufficient. A cold boot removes power and clears memory (RAM) of all internal data and counters that keep track of operations, which are created by the OS and applications when they run. Erratic program behavior is often cured with a cold boot, also known as a "hard boot."

Remove the Power
Even when shut down, computers may occasionally retain settings in RAM. The only way to absolutely guarantee RAM is cleared is to remove the power source, which means unplugging a desktop computer or removing the battery in a laptop. Laptops with non-removable batteries are typically cold booted (reset) by holding down the power button for 10 or more seconds. Sometimes another key or button must be pressed along with the power button.

A/V Equipment
TVs, A/V receivers and set-top boxes generally draw power when turned off, and they must be cold booted by removing their power cables to reset them. Contrast with warm boot. See boot, clean boot and hard reset.
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References in periodicals archive ?
To deal with the cold-start problem [5], Schein et al.
Alvarez, "Cold-start emissions of modern passenger cars at different low ambient temperatures and their evolution over vehicle legislation categories," Atmospheric Environment, vol.
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Qureshi said that India should look to do away with its 'Cold-Start Doctrine' and cooperate with Pakistan for the well being of people of both the neighbouring nations.
A The computer in every fuel-injected car must know two things before it can figure out the correct cold-start air/fuel mixture: the engine coolant temperature and the outside air temperature.
The result is an extended cold-start cycle that demands constant attention from the melt operator (power tuning, tap changing, etc.).
Innovations include a glow plug controller that virtually eliminates cold-start white smoke, and an engine control unit that provides smoother operation and better synchronization in twin engine applications.