1. FS: File System.
  2. FSB: Front Side Bus.
  3. FTP: File Transfer Protocol.
  4. FXP: File Exchange Protocol.
  5. FAT: File Allocation Table.
  6. FAQ: Frequently Asked Questions.
  7. FDC: Floppy Disk Controller.
  8. FHS: Filesystem Hierarchy Standard.
  9. FCS: Frame Check Sequence.
  10. FPU: Floating Point Unit.
  11. FDD: Floppy Disk Drive.
  12. FDMA: Frequency-Division Multiple Access.
  13. FIFO: First In First Out.