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1 June, 15:52

Contains the SCI and handles mapping between user requests and device driver actions. It also manages system resources and performs system services

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  1. 1 June, 16:11
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    An operating system contains the SCI (System Control Interrupt)

    Explanation:

    An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.

    The OS is responsible for managing these resources.

    Software:

    • Operating System, (System Software, application software)

    Hardware

    • CPU

    • RAM

    • I/O

    Functions of an operating System.

    • Management of Memory, Processor, File, Device,

    • Security

    • Error detecting aids

    • Coordination between other software and users

    • Access I/O devices

    Contains a field that reports the SCI (System Control Interrupt) interrupt number to OS.

    SCI: System Control Interrupt, A system interrupt used by hardware to notify the OS of ACPI events. The SCI is an active, low, shareable, level interrupt.
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