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In a raw Itanium, a "Processor Abstraction Layer" (PAL) is integrated into the system. When it is booted the PAL is loaded into the CPU and gives a low-level interface that abstracts some instructions and gives a mechanism for processor updates distributed via a BIOS update.
During BIOS initialization an additional layer of code, the "System Abstraction Layer" (SAL) is loaded that gives a uniform API for execution-specific platform functions.
On top of the PAL/SAL interface sits the "Extensible Firmware Interface" (EFI). EFI is not part of the IA-64 architecture but by convention it is needed on all IA-64 systems. It is a easy API for access to logical aspects of the system (display, storage, keyboard, etc) combined with a lightweight runtime environment (same to DOS) that allows basic system administration tasks such as configuring storage adapters, flashing BIOS and running an OS boot-loader.
Once the OS has been booted, some aspects of the PAL/SAL/EFI stack remain resident in memory and can be accessed by the OS to perform low-level tasks that are implementation-dependent on the underlying hardware.
The advantage of using a Database Management System The advantage of using a Database Management System for a data store is that databases have mechanisms for describing data,
What is the difference between a constant and variable? Explain with example. A C constant is usually just the written version of a number. For example 1, 0, 5.73, 12.5e9. We
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When a switch capacity is full, calls coming into that switch are said to be . (A) open (B) shorted (C) bloc
Hello everybody I have a project that is a bingo board run by laser pointers, light sensors, and leds. Basically I''m creating a 5 by 5 grid (bingo board) in which each row and col
Perform the subtraction using 1's complement of 11001 - 10110 Ans. 11001 - 10110 = X - Y X = 11001 1's complement of Y = 01001
What guarantees the integration of all application modules? The R/3 basis system guarantees the integration of all application modules. The R/3 basis s/w gives the run time e
Kirc hoff's Voltage Law The sum of all the voltage drops around a closed circuit loop will add to zero V1+(-V2)+(-V3)+(-V4)= 0
SPC is used for (A) Carrying Exchange Control Functions (B) Carrying Subscriber Control Functions (C) Exchange Hardware (D) Signalling Purpose Ans:
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
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