10-15years easy. But if you want to use more up to date programs and games, only about 3. It will work fine after this, but the latest and greatest might not be compatible with your software.
Computer architecture is not useful for the people whose use the computer for general purposes. Mostly, computer architecture helps those people who are in the manufacturing/development sector.
flabbergaster
information. coveys meaning and is useful to people
pagal
i do not know okay wow