In the image below, what does
Extended 103 GB mean?
A traditional partition table like yours can have maximum of four primary partition. That means you can't have more than four drive. Concept of extended partition solves this problem.
An extended partition is a special type of partition that can hold multiple logical partition. It's is like a container/wrapper of all logical partition. Inside extended partition you can create many logical partition (there solves the drive limitation).
Primary partitions generally used for installation of operating system. However logical partition can also be used. (like your ubuntu is installed in extended partition)
In your hard disk you have three primary partition
In a word, your partition table is 100% alright. :)
Yes, using an
The original method was developed in the early 1980's when 10-20 MiB was considered a "very large" disk. To put it another way, the original Master Boot Record (MBR) partitioning scheme was created at a time when 0.002% of your 500 GB drive was considered a HUGE! amount of storage.
By the time they realized how foolish the original scheme was, they were locked into into it. So using an
At some point in the future, disks will no longer use MBR partitioning. Instead they will use a GUID Partition Table (GPT). Using GPT partitioning there can be (at least) 128 primary partitions. So GPT partitioning does not use an
However, all the major computer manufacturers appear to be working together to make the transition from MBR to GPT partitioning as difficult as possible. So it is not clear at what point MBR partitioning will be replaced by GPT partitioning. The use of an