Yes
No, it is all stored on the pen drive.
When you format a hard-drive, you will lose any information on that drive.
Not unless you reformat the drive, although if the drive is a different format like a mac and you have a PC you might have to reformat the drive just to use it
Yes, you can use the slave slot for the other hard drive u nid to use an IDE cable or SATA2 cable if your hard drive is in SATA2
Well the hard drive stores all your personal data and system data, without a hard drive to boot your operating system from all your left with is a glorified side table. Read this below for more info: http://www.helpwithpcs.com/courses/hard-drive-basics.htm http://www.helpwithpcs.com/jargon/hard_disk.htm
Game information saves on the Xbox's hard drive.
virtual memory
I think the retail kit gives you a box, cables, maybe a manual and warranty info while the other does not.
Depends..... Are you talking about Memory, Speed, a Hard drive or what. Need more info.
Do not buy Dell anymore. for more info see.
Well as you may know an internal hard drive is inside your computer and stores just about all your computers' info. But you may have information on there that you want to take to your friends house, so you would put the info on your internal hard drive on an external hard drive, then put it on your friends computer instead of taking in and out your internal hard drive. So really bottom line here and external hard dirve is a more portable hard drive and easier to carry around.
On desktop, click hard drive icon to select it. Go to file menu and select Get Info. (or simply "right-click" on hard drive icon and choose Get Info.) You will see "Capacity" of drive, and "Available" and "Used" space. Note: you may have several "hard drive icons" on a single physical drive. That is because the Mac treats each partition as a separate drive. To see all partitions, launch the "Disk Utility.app". On the left side, it will list all the partitions on each physical drive, whether mounted on the desktop or not. You can select any partition and click on "info" at top of the "Disk Utility" window to see space used and free space on that partition.