A method for converting a single-sided 5.25" floppy disk into a double-sided disk. By punching a second notch in the jacket, the disk could be flipped over and inserted upside down. This was a ...

Most of us may have gratefully abandoned the floppy disk a decade or more since, but even today many PCs and their operating systems retain the ability to deal with these data storage relics.

PCs used two types of floppy ... hole in the upper left corner. IBM offered an extra-high density 2.88MB drive on selected PCs that was backward compatible, but the format never caught on. Floppy ...