A Tera-Watt is 10^12 Watts or 1 000 000 000 000 Watts.
A Tera-Byte is often represented in 2 decimal values so you have to find which system the drive maker is reporting it in.
For now, the usual 1 TB drive has 1 000 000 000 000 bytes which you get a little less for your data files since your FILE SYSTEM does eat some space.
Bob
On my current computer I have 2 drives:
(1) 320GB (actually says 298GB total free)
(2) 200GB (actually says 186GB total free)
That gives me a total of 484GB
If I get a computer with a 1TB hard drive how much space will actually have free????

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