Not so much as an error, but more a question about a question...
Q:
Which letter drive is no longer used by computers?
A:
/B drive
but there is also "/A drive" listed as a possible answer.
my question is - do computers still use /A drives(floppy disks)?
I thought they were also obselete

I have bought 3 PCs in the last 4 years (not all for myself) but none of them had floppy disk drives.
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found this on another site:
You May Need To Buy A New Computer If...
•...your processor speed is less than 1.0 gigahertz (GHz). Most operating systems and application software these days demand a lot from your system. A speedy processor will help you browse the Internet, run your word processor and play games with ease. On a Windows PC, click the Start button, then Control Panel, then System to see your processor information. If the speed is listed in megahertz instead of gigahertz, see if any friends need a new anchor for their fishing boat.
•...your computer has less than 512 megabytes (MB) of RAM memory. Again, the System Properties window will show how much RAM is installed. I recommend at least 1GB (1000MB) of RAM for smooth and speedy performance. Go for 2GB of RAM if you're running Vista.
•...you are running a version of Windows that begins with a "3" or a "9" (Windows 3.1, Win95, or Win98). These versions lack the security features and technological advances required for safe computing and protection from identity theft. If you have a Mac that's NOT running OS X, the same applies.
•...you have a monitor that's 14-inch or smaller. Most websites will not display properly on an old 14-inch monitor, and the larger 17-inch models are now standard.
•...you try to install a program and you get the error "Operating System not supported."
•...you try to upgrade the Operating System and get an error message that the hardware is not supported.
•...your computer has no USB ports. Most peripheral devices such as the mouse, keyboard, printer, scanner and external hard drives now use USB connections.
•...your computer has a 5.25 inch disk drive! Actually if you have even a 3.5-inch floppy disk drive, you may qualify. Software has outgrown the floppy disk, and the mere presence of a floppy drive on your machine may indicate that it's time to take it out back and shoot it.
[edit - typo]