1) What does the computer do when we format our hard-disk or Pen-drive.
2) Formatting clears all Data on a Disk , then what is the difference between deleting all files in the disk and Formatting the entire disk
Before answering this, you should know how a file system is built. A file system is a kind of library in which we have books that represent files. These books can be found using the Library's catalogue, telling you in which shelf the books are stacked.
Over time, the catalogue will still contain books that are no longer present in the library or books will be in the library that are not recorded in the catalogue. There will be decay in the system and errors might occur. Also the library might decay and fall into ruin.
When we delete all files from a media, we clear out the entire catalogue but leave all the books in the shelves. When we want to add a file (book), we make room for the new book by removing some of the other old books from the shelf and putting the new book there.
However, if we format the media, we demolish the entire library and rebuild it. The books may then still be recovered from all the rubble of the old library, but once the new library is getting filled up, that books will decay.
3) Is it Bad to format Multiple times
4) On an average how many times can you format your disk
5) Will Formatting reduce hard-disk lifespan
There's no real reason to format several times. Media, as well as hard drives and especially USB thumb drives have a number of write cycles in which according to the manufacturer, proper operation is guaranteed. Formatting media will contribute to the number of write cycles being done. Yet, you won't actually damage the drive.
6) What is the difference between quick Formatting and the standard Formatting
From Wikipedia:
High-level formatting is the process
of setting up an empty file system on
the disk and installing a boot sector.
This alone takes little time, and is
sometimes referred to as a "quick
format".
In addition, the entire disk may
optionally be scanned for defects,
which takes considerably longer, up to
several hours on larger hard disks.
I'd be willing to bet that it's a sheer coincidence or, in changing the name, you fixed some other underlying error. Volume Names don't really have any meaning beyond a friendly reference, and there's no difference between a volume called "New Volume", "Local Disk" or "Dans Hard Drive".
The drive letter on the other hand - this is how Windows references different volumes. So, say you have two hard drives (Or two partitions, they're the same for this explanation), then you may have two drives called
C: and D:
You'll rarely see and A: and B: due to legacy requirements - these always used to be the floppy disks.
You'll also notice that every other drive, such as CD-ROMS, DVD-ROMS, USB flash drives and occasionally MP3 players etc will also have a letter.
Each volume must have a unique letter in order to be accessed by Windows. You can customise these, and even remove them*, but that's out of scope.
*Removing the letter will make the volume inaccessible, but you can still see the volume in Disk Management, and assign a letter to it etc.
Best Answer
Partitions specify boundaries of areas on the disk.
Formatting is creating a filesystem volume. This does things like creating a table for storing filesystem volume objects (like files and directories), creating a root directory, and creating a volume label.
When you format (which means creating/initializing the filesystem volume), the typical method is for the new filesystem volume to take up the entire available space, which is either an entire partition or an entire disk. (For example, an entire partition on an SSD or a hard drive, or an entire disk if using a floppy disk.)