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فهرست عناوین اصلی در این پاورپوینت

فهرست عناوین اصلی در این پاورپوینت

● B I O S
Basic Input / Output System
● Introduction
● Power on
● BIOS Functions
● Bootstrapping
● Loading . . . .
● still Loading . . . .
● Other features
● tattoo
● Non-IBM compatible PC
● Why upgrade BIOS
● Introduction
● The structure of an operating system
● User interface
● Kernel
● Kernel cont.
● File management system
● Operating systems classification
● Basic Functions
● Functions – continued
● Processor management
● Interrupts
● Interrupts… incoming…
● Interrupts – Multitasking
● Interrupts handler
● Interrupts classification
● Interrupts – Summary
● Memory storage & management
● Device management
● MAC / Windows

نوع زبان: انگلیسی حجم: 1.41 مگا بایت
نوع فایل: اسلاید پاورپوینت تعداد اسلایدها: 40 صفحه
سطح مطلب: نامشخص پسوند فایل: ppt
گروه موضوعی: زمان استخراج مطلب: 2019/06/15 11:06:34

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عبارات مهم استفاده شده در این مطلب

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., bio, system, boot, pc, drive, computer, disk, software, power, process, hard,

توجه: این مطلب در تاریخ 2019/06/15 11:06:34 به صورت خودکار از فضای وب آشکار توسط موتور جستجوی پاورپوینت جمع آوری شده است و در صورت اعلام عدم رضایت تهیه کننده ی آن، طبق قوانین سایت از روی وب گاه حذف خواهد شد. این مطلب از وب سایت زیر استخراج شده است و مسئولیت انتشار آن با منبع اصلی است.

در صورتی که محتوای فایل ارائه شده با عنوان مطلب سازگار نبود یا مطلب مذکور خلاف قوانین کشور بود لطفا در بخش دیدگاه (در پایین صفحه) به ما اطلاع دهید تا بعد از بررسی در کوتاه ترین زمان نسبت به حدف با اصلاح آن اقدام نماییم. جهت جستجوی پاورپوینت های بیشتر بر روی اینجا کلیک کنید.

عبارات پرتکرار و مهم در این اسلاید عبارتند از: ., bio, system, boot, pc, drive, computer, disk, software, power, process, hard,

مشاهده محتوای متنیِ این اسلاید ppt

مشاهده محتوای متنیِ این اسلاید ppt

bios and operating system ece۴۱ ۲ pc s hypothalamus cpu’s brain b i o s basic input output system when you first turn on your pc your pc requires information to detect pc components to find the operating system floppy disk hard drive or a cd rom this information is stored in the bios introduction bios is mostly for ibm compatible computers it is a boot firmware contains essential set of routines designed to be the first code run by a pc when powered on. its main purpose is to prepare the machine into a known state so that software stored on compatible media can be loaded executed and given control of the pc. it also provides basic software drivers for all peripheral technologies. power on when a computer is turned on the microprocessor has no idea what to do next as there is nothing at all in the memory to execute it tries to execute its first instruction and it has to get the instruction from somewhere. bios provides those instructions and it is stored in a bios rom. the instruction typically located at memory location ffff h or right at the end of the system memory this process is known as booting or booting up which is short for bootstrapping the whole process is hidden because the only thing displayed by the monitor is the logo of the machine manufacturer or the logo of the bios company. bios functions power on self test post takes place right after you power on. it will test computer hardware ensuring hardware is properly functioning before starting process of loading operating system. if the post is successful the bios calls int ۱۹ interrupt ۱۹ and then proceeds to look for devices attached to the motherboard. bootstrap loader process of locating the operating system. if capable operating system located bios will pass the control to it. bootstrapping tests the system and prepares the computer for operation based on cmos settings installed hardware and the configuration settings from the manufacturer and user load the interrupt handlers and device drivers interrupt handlers small pieces of software that act as a translator between the hardware components and the operating system. device drivers – other pieces of software that identify the base hardware components such as keyboard mouse hard drive or floppy drive. initialize registers and power management loading . . . . once finished it begins searching for a drive to boot an operating system → the boot order or sequence depending on the bios setting the procedure may try to access in a predefined customizable order the first sector boot sector of any floppy disk any hard disk and any cd rom in the system. bios will try to initiate the boot sequence from the first device. if it does not find the proper files in the device the startup process will halt and an error message is displayed. still loading . . . . most are set to first look for a bootable floppy disk and if one is not found then proceed to a hard disk which is usually the c drive. once the drive is identified it looks for boot information to start the operating system boot process. if it is searching a hard disk it looks for a master boot record mbr at cylinder head ‘sector zero’ the first sector on the disk. if a master boot record is found it is read into memory at location ۷c and int ۱۹ jumps to memory location ۷c . at this point the bios attempts to move control of the computer from the bios to the actual operating system. configuring bios cmos setup during the initial start up or the boot sequence you will notice a sentence press to enter setup. most system use esc del f۱ f۲ or combination of keys to enter setup menu. this will cause the boot process to be diverted into the cmos configuration. cmos contains stored configuration regarding how the system is to be booted. it is configuration program that allows you to configure hardware settings including system settings such as boot sequence computer passwords time and date. an example of a cmos setup other features bios program continually checks the cpu temperature and voltages the cooling fans rpm etc. if over heating occurs the pc will shut down automatically. the pc can also be turned on by for example modem signals since the power supply is controlled by the motherboard. the on off button will turn the pc down without turning it completely off. tattoo some bioses contain a tattoo a digital signature placed inside the bios by the manufacturer for example dell. computer manufacturers that distribute original equipment manufactured oem versions of microsoft windows and microsoft application software can use the tattoo to authenticate licensing to the oem windows installation disk and or system recovery disc containing windows software. dell systems having tattoos do not require entry of the product key the product key on the label in fact being invalid and they bypass windows product activation a convenience to the user and to microsoft . non ibm compatible pc apple macintosh where the system software originally relied heavily on the toolbox—a set of drivers and other useful routines stored in rom based on motorola s ۶۸ x cpus. these apple roms were replaced by open firmware in the powerpc macintosh then efi extensible firmware interface in intel macintosh computers. why upgrade bios large hard drive support. older bios s couldn t see drives larger than ۳۷gb due the ۴۸bit problem. new video card technology such as agp ۸x support or in older machines ۲x to ۴x. this includes sli. advanced configuration and power interface acpi compatibility cpu support. bios companies …

کلمات کلیدی پرکاربرد در این اسلاید پاورپوینت: ., bio, system, boot, pc, drive, computer, disk, software, power, process, hard,

این فایل پاورپوینت شامل 40 اسلاید و به زبان انگلیسی و حجم آن 1.41 مگا بایت است. نوع قالب فایل ppt بوده که با این لینک قابل دانلود است. این مطلب برگرفته از سایت زیر است و مسئولیت انتشار آن با منبع اصلی می باشد که در تاریخ 2019/06/15 11:06:34 استخراج شده است.

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