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Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. Plug and Play and hot swapping), and status monitoring.
Computer systems such as laptops often produce large amounts of heat which must be dissipated. This is typically done by activating a fan to blow air over the components that are producing heat; the fan is not simply turned on or off, but is driven at high speed by the embedded controller for a short time and then left running at low speed ...
A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack) by facilitating the safe usage and a long life of the battery in practical scenarios while monitoring and estimating its various states (such as state of health and state of charge), [1] calculating secondary data, reporting that data, controlling its environment ...
Battery tester. A battery tester is an electronic device intended for testing the state of an electric battery, going from a simple device for testing the charge actually present in the cells and/or its voltage output, to a more comprehensive testing of the battery's condition, namely its capacity for accumulating charge and any possible flaws affecting the battery's performance and security.
Underclocking, also known as downclocking, is modifying a computer or electronic circuit's timing settings to run at a lower clock rate than is specified. Underclocking is used to reduce a computer's power consumption, increase battery life, reduce heat emission, and it may also increase the system's stability, lifespan/reliability and compatibility.
Temperature probes are used to make contact measurements of surface temperatures. They employ a temperature sensor such as a thermistor, thermocouple, or RTD, to produce a voltage that varies with temperature. In the case of thermistor and RTD probes, the sensor must be electrically stimulated to produce a voltage, whereas thermocouple probes ...
Wacom Sensor Windows XP Tablet PC Edition Intel Pentium M: 40-60 0.5-2 ASUS Eee Pad Transformer (TF101) Asus: 0.68 kg (1.5 lb) 10.1 in (26 cm) 1280 × 800 Capacitive multi-touch: Android 3.2 Honeycomb Nvidia Tegra 250 16, 32, 64 1 ASUS Eee Pad Transformer Prime (TF201) Asus 0.586 kg (1.29 lb) 10.1 in (26 cm) 1280 × 800 Capacitive 10 point ...
The ambient light sensor of a Google Pixel 4a smartphone under a microscope. An ambient light sensor is a component in smartphones, notebooks, other mobile devices, automotive displays and LCD TVs. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device's screen to match it.