Floppy disk and cd/dvd drives!
When you need to recover files from an old pc and need a Windows XP startup disk.... it's no fun in 2015.
Worse, it was on an IDE Hard drive and I couldn't find an external hard drive case for it so I had to take it to a PC repair store that had an IDE adaptor. Charges $40 to copy any amount of data above 20 Gigabytes.