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BIOS interrupt calls perform hardware control or I/O functions requested by a program, return system information to the program, or do both. A key element of the purpose of BIOS calls is abstraction - the BIOS calls perform generally defined functions, and the specific details of how those functions are executed on the particular hardware of the system are encapsulated in the BIOS and hidden ...
The keyboard works even if the BIOS keyboard service is not called; keystrokes are received and placed in the 15-character type-ahead buffer maintained by BIOS.) The boot program must set up its own stack, because the size of the stack set up by BIOS is unknown and its location is likewise variable; although the boot program can investigate the ...
Compaq Armada laptop from the late 1990s Apple MacBook Air, an "ultraportable" laptop weighing under 3.0 lb (1.36 kg) A Lenovo IdeaPad laptop Lenovo's ThinkPad business laptop, originally an IBM product Asus Transformer Pad, a hybrid tablet, powered by Android OS Microsoft Surface Pro 3, 2-in-1 detachable Alienware gaming laptop with backlit ...