Why wouldn't it? :) I bought a new chassi a year ago, it came with a 500 watt PSU :)
No, tower cases do not always come with a power supply. Sometimes they come with a standard one, but many people prefer to choose their own.
The BMW 328 does indeed come with standard power steering. Most vehicles these days come with standard power steering.
No you can buy a supply seperate but the case always has a supply.
Desktop computers all come with a power supply that changes the mains voltage in your country's electricity supply to that needed inside the PC. Thus the Voltage used by your PC is the mains voltage in the country where the PC was sold.
Most systems will come with BASH installed.
Yes
Yes
Laptop power supplies generally come from their manufacturer. So HP power supplies would come from Hewlett Packard, and IBM power supplies would come from IBM.
Home generators come on in two ways, manually and automatically. More information can be found on this website http://www.newingtonelectric.com/generators.residential.php . However if you are looking for security for computers I highly recommend using an Uninterruptible Power Supply that comes with a battery just in case a fuse blows out.
No, unless you have bought it with a bundle.
A temporary fault in the supply
The Cooler Master Storm Scout doesn't come with a power supply. You'll have to buy your own.