Once you format, any data on disk is gone.
Program itself is a form of data. So it can not hold a data. It can only move the data to the storage (memory, harddisk... etc) or instruct an output device like printing/screen to recreate/re-represent/transform the data into something human can understand.
It is stored in binary, that is in the form of ones and zeroes.
A (harddisk) is a hard drive that stores and provides quick access to large amounts of data.
Here is it .... Every data stored in the hdd is addressed by pointer that points to the memory location of where the data is stored .. When u delete a particular data only the pointer pointing to the data is deleted.. The data remains in hdd in the same location.. When u store someother data in the harddisk and ur os decides it must be saved in the location were ur old data is , it'll be overwritten ...
A hard disk is what all your files, including the Operating System are stored in. There are many sizes of hard disk and what the capacity is.
Yes, it is.
Pixels
A form is a visual representation of a database's data. Normally, data stored in Microsoft Access is viewed and edited through a form.
They are stored in the form of bits or bytes. More information can be found here: http://en.wikipedia.org/wiki/Binary_digit
Tabular Form
Digital Audio Data