The data disc is for evolving Porygon2 into PorygonZ. You must trade the Porygon2 while holding the Data Disc...
Formatting a disc means you are permanently erasing all the data on the disc.
Data is stored on the hard disc. The more memory hard disc has the more data can be stored.
Burn a disc means either to download data to a disc or make a copy of another disc.
It depends...if you are burning data to a DVD-RW disc on a computer, and you do not finalize the disc then you may add more data later. However, if you are using a DVD-R disc then it will need to be finalized to access the files, and you will not be able to add more data without first erasing the data that is currently stored on the disc.
No
Onto a disc
A floppy disc is an old form of data storage device, so the answer would be CD's, DVD's and data sticks.
you can clear the data from a write only disc by formatting the disc
All digital data is represented as one's and zero's. The actual physical representation of data on an optical disc - assuming you are talking about CD's - is called pits and lands.
That is the correct spelling of "record keeping" (saving data).
Windows is installed in a separate section of the hard disc and will not affect your existing data. As with any major changes to a hard disc it is advisable to have a back up copy of your hard disc on an external disc before starting the installation.