The computer management feature in Windows can be used to partition a drive and create logical drives within these partitions. There are also commercial and non-commercial programs available for the same purpose.
You cannot reverse such process especially after you have installed the os. But if you remember the old partition size you can format the disk again, delete partitions which you don't need and create a partition which you want to have.
Hard Drives Floppy Drives Tape Drives Drum Drives
choke is used before drives to reduce the source supply fluctuation problem , which will effect drives
elecric drives are basically big electric motors which are used to drive generators
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On MBR partitioned hard-drives only 4 primary partition can be created. (Use extended and logical partitions to create more partitions).
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A map to the partitions on the hard drive. This table tells BIOS how many partitions the drive has and how each partitions is divided into one or more logical drives, which partition contains the drive to be used for booting (called the active partition), and where each logical drive begins and ends.1-map to the partitions on on the hard drive2-information about where each logical drive is located, where it starts and where it ends3-which partition contains the drive to be used for booting (the active partition)The first is a map to the partitions on the harddrive,and how they are divided, the second, which partition contains the drive to be used for booting this is called the "Active Partition", and third where each logical begin and ends.
Primary partition is only one
Partition information: detailing the size and type of each partition on the hard drive. File system type: specifying the format used to organize and store data on the partitions. Boot information: indicating which partition contains the boot loader and bootable operating system.
When you partition a hard drive into two or more partitions (storage areas) those extra drives are called logical drives. So you can have 2 or 3 or more logical drives on one physical hard drive. It varies.
As many as it can handle (how big it is). And adding partitions does not make more space. It's like putting a brick wall in the middle of a football field. :-P This is depend on your disk style, if your disk is MBR, you could only create four primary partitions or three primary partitions with one Extended partition (you could create many logical partition under extended partition) at most If your disk style is GPT, you could create as many as you can. here is an article about how to make partition from http://www.partition-magic-windows7.com/res/create-partition-windows7.html
Create one primary partition and an extended partition with four logical drives within it.
You have to create the primary partition, which will create a drive with assigned letter for you. Or you can create the extended partition where you can create logical drives it can be more than 1.
kind of vague question, but I think you mean partition. Partitions divide hard drives into logical volumes.
You can format drives and partitions that are not in use by the system, but you can not extend the size of a partition.
Logical Drives