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Typical POST screen (AMI BIOS) Typical UEFI-compliant BIOS POST screen (Phoenix Technologies BIOS) Summary screen after POST and before booting an operating system (AMI BIOS) A power-on self-test (POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on. [1]
Some computer designs have used non-button cell batteries, such as the cylindrical "1/2 AA" used in the Power Mac G4 as well as some older IBM PC compatibles, or a 3-cell nickel–cadmium (Ni–Cd) CMOS battery that looks like a "barrel" (common in Amiga and older IBM PC compatibles), which serves the same purpose. These motherboards often have ...
Although a new functional self-test procedure was added, the original manual did not document it. [18] HP-15C Collector's Edition: The bugs above and others have been fixed in the firmware, or in the case of the non-functional self-test procedure, instructions to switch to the new self-test are included in the accompanying documentation. [11]
This black screen was simplified compared to the previous blue screen, omitting instructions that the user is recommended to take. [ citation needed ] Windows 10 and later also displays a black screen due to an unfinished update in addition to the aforementioned causes above; in this case, after the system restarts and the user tries to login ...
The Samsung NC10 (Samsung SENS NC10 in South Korea) is a subnotebook/netbook computer designed by Samsung.At the time of its introduction (2008), it was noted for its combination of a 10.2" screen and large 6-cell battery as standard, giving a battery life of up to 7.5 hours, [1] a large hard disk drive and a release price of 499 USD (299 GBP).
Close-up of an LCD, showing a dead green subpixel as a black rectangle A defective pixel or a dead pixel is a pixel on a liquid crystal display (LCD) that is not functioning properly. The ISO standard ISO 13406-2 distinguishes between three different types of defective pixels, [ 1 ] while hardware companies tend to have further distinguishing ...
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In computing, a crash, or system crash, occurs when a computer program such as a software application or an operating system stops functioning properly and exits. On some operating systems or individual applications, a crash reporting service will report the crash and any details relating to it (or give the user the option to do so), usually to ...