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HP EliteBook is a line of business-oriented laptop computers made by Hewlett-Packard (), [1] marketed as a high-end line positioned above the ProBook series. [2] The line was introduced in August 2008 [3] [4] as a replacement of the HP Compaq line of business laptops, and initially included mobile workstations until September 2013, when they were rebranded as HP ZBook.
The desktop computer power supply converts the alternating current (AC) from a wall socket of mains electricity to a low-voltage direct current (DC) to operate the motherboard, processor and peripheral devices. Several direct-current voltages are required, and they must be regulated with some accuracy to provide stable operation of the computer.
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. It was first released in ...
A regulated power supply is an embedded circuit; it converts unregulated AC (alternating current) into a constant DC. With the help of a rectifier it converts AC supply into DC. Its function is to supply a stable voltage (or less often current), to a circuit or device that must be operated within certain power supply limits.
The machine's keyboard was a cross between the keyboard of a scientific calculator and the keyboard of an adding machine. There was no alphabetic keyboard. Apple co-founder Steve Wozniak originally designed the Apple I computer while working at HP and offered it to them under their right of first refusal to his work. They did not take it up as ...
In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. The switched-mode power supply's higher electrical efficiency is an important advantage. Switched-mode power supplies can also be substantially smaller and lighter than a linear supply because the transformer can be much smaller.
The reason given is: The Latitude brand is being retired in 2025 due to Dell rebranding its computer lineups that year. Please help update this article to reflect recent events or newly available information. (January 2025)
MIL-STD-810 is maintained by a Tri-Service partnership that includes the United States Air Force, Army, and Navy. [2] The U.S. Army Test and Evaluation Command, or ATEC, serves as Lead Standardization Activity / Preparing Activity, and is chartered under the Defense Standardization Program (DSP) with maintaining the functional expertise and serving as the DoD-wide technical focal point for the ...