l2 - Operating system Basics Outline of the Lecture Hard...

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1 Operating system Basics Outline of the Lecture: Hard disk Basics How to install an OS? What is Bootstrapping? How does an OS get loaded?
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2 Hard disk basics : Hard disk Structure Hard disk consist of: Sectors Tracks Cylinders A hard disk is a logical array of blocks.
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4 What is MBR? 1st physical sector of the hard disk is called Master Boot Record. Floppy disks have no MBR. MBR Contains MBR Code: a boot Strap Loader, Loads the OS. MBR Data Structures Partition Table.
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5 What is partition table? A physical disk can be divided into several partitions called logical volumes. The data structure that contains the information of different partitions is called a partition table. MBR has a partition table.
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6 Types of Partitions Primary partition Extended partition Logical partition
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7 Why Partition? Need to install more than one OS. (Windows, Linux) Need to install different file systems(like: FAT 16, FAT 32, NTFS, HTFS, UFS)
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l2 - Operating system Basics Outline of the Lecture Hard...

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