To modify your xbox.. basically if someone say's 'im going to mod my name' that means they are going to modify there name using a USB or a computer there are other types of mods but are more complicated. i highly recommend you do NOT mod as it's a one way step to getting your IP banned.
xbox hard disk drives (hdd) are locked, you have to lock a non-xbox hdd to make it work. but you will have to understand the engineering of the hdd in order to make sure that it is compatible with the system. not many are compatible. most times it is best to modd the old xbox in order to add a second hdd. after modding it you can modd a controller cable to become a USB cable.
Means it's modd
Depends on what mod you're trying to do.
Yr oedd modd
60 and up depending on specifics
Rwyf wrth fy modd ffotograffiaeth.
Rwyf wrth fy modd yn dysgu.
If you mean different varitions of the Xbox... just Xbox, Xbox 360 and Xbox One. If you mean how many there are circulating, it is unknown
right
xbox live you mean and yes you can do that
if you mean the xbox pro console then of course you can you can go on live with any xbox console
it isn't on xbox but if you mean xbox 360 50$