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In computing, the reset vector is the default location a central processing unit will go to find the first instruction it will execute after a reset. The reset vector is a pointer or address , where the CPU should always begin as soon as it is able to execute instructions.
Nonvolatile BIOS memory refers to a small memory on PC motherboards that is used to store BIOS settings. It is traditionally called CMOS RAM because it uses a volatile, low-power complementary metal–oxide–semiconductor (CMOS) SRAM (such as the Motorola MC146818 [1] or similar) powered by a small battery when system and standby power is off. [2]
This implies that after the hardware reset, the CPU will start execution at the physical address 0xFFFF0. In IBM PC compatible computers, This address maps to BIOS ROM. The memory word at 0xFFFF0 usually contains a JMP instruction that redirects the CPU to execute the initialization code of BIOS. This JMP instruction is absolutely the first ...
The original motivation for EFI came during early development of the first Intel–HP Itanium systems in the mid-1990s. BIOS limitations (such as 16-bit real mode, 1 MB addressable memory space, [6] assembly language programming, and PC AT hardware) had become too restrictive for the larger server platforms Itanium was targeting. [7]
The Compaq Presario 1200 was a line of notebook computers produced between 1998 and 2000 by Compaq as part of Compaq Presario line.. The Presario 1200 line of notebook computers were originally noted for their AMD processors, light weight and 12-inch LCD screens, while later models included a shift to Intel processors and other changed features.
This can remove adware, get rid of extensions you didn't install, and improve overall performance. Restoring your browser's default settings will also reset your browser's security settings. A reset may delete other saved info like bookmarks, stored passwords, and your homepage.
The IBM Personal Computer included ROM-based firmware called the BIOS; one of the functions of that firmware was to perform a power-on self test when the machine was powered up, and then to read software from a boot device and execute it. Firmware compatible with the BIOS on the IBM Personal Computer is used in IBM PC compatible computers.
Reset a forgotten password. Use Sign-in Helper, AOL's password reset and account recovery tool, to get back in to your account. Go to the Sign-in Helper. Enter one of the account recovery items listed. Click Continue. Follow the instructions given in the Sign-in Helper. Change your password. From a desktop or mobile web browser: