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F

FD - Floppy Disk: A mass storage medium based on flexible ("floppy") disks with magnetic surfaces. The oldest disks are 8 inches in diameter, mini floppy disks are 5.25 inches in diameter and the modern MFDs are 3.5 inches in diameter. The first disks were only single-sided, but all modern FDDs use two magnetic read/write heads, one for each side.
FDD - Floppy Disk Drive: This mass storage system reads/writes binary data from/to FDs.
FIFO - First In - First Out: A principle for caches (fast intermediate storages). The data that were saved first, will be put out first. A FIFO memory is very often called "heap". See also LIFO.
FLOPS - FLoating point Operations Per Second: A measure for the power of computers.
FORTRAN - FORmula TRANslator: A programming language.
FPU - Floating point Processing Unit: The IC that handles floating point calculations. Modern CPUs have a built-in FPU.
FTP - File Transfer Protocol: This Internet protocol is used to transfer files.

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