FD meaning in Computing ?

Answer:

What is File Descriptor mean?

In Unix and Unix-like computer operating systems, a file descriptor (FD, less frequently fildes) is a unique identifier (handle) for a file or other input/output resource, such as a pipe or network socket.

File descriptors typically have non-negative integer values, with negative values being reserved to indicate "no value" or error conditions.

File descriptors are a part of the POSIX API. Each Unix process (except perhaps daemons) should have three standard POSIX file descriptors, corresponding to the three standard streams:

reference

Full Form	Category
Floral Decoration	Academic & Science
Front Door	Academic & Science
Ferredoxin	Academic & Science
Fermi Dirac	Academic & Science
Fluid Dynamics	Academic & Science
Facility Division	Academic & Science
Frontières de la Découverte	Academic & Science
Filter Design	Academic & Science
Facility Dispersion	Academic & Science
Fixed Deposit	Banking
Flexi Deposit	Banking
Flightline Diner	Business
Floor Display	Business
Forced Draft	Business
Fund Drive	Business
Foward	Business
Federated Department Stores, Incorporated, of Delaware	Business
First Draft	Community
Foster Daughter	Community
Franklin Delano	Community
Fashion Design	Community
Forum Defensia	Community
Float Double	Computer Assembly Language
Flat Display	Computer Hardware
Floppy Drive	Computer Hardware
FTP (File Transfer Protocol) Directory	Computing
File Descriptor	Computing
Floppy Disk	Computing
File Description	Database Management
Forms Definition	Database Management
Flash Disc	Database Management
Field Delimiter	Database Management
Full-component Distortion	Electronics
Fire Detector	Electronics
Microsoft Fortran Declaration File	File Type
Field Offsets for Compiler - Dataflex	File Type
Front Door Resource File	File Type
Camera Terms	General
Fonar Day	General
Funeral Director	General
Fumbled	General
Flyball Dog	General
Field Dog	General
Final Dance	General
Free Download	General
For Deep	General
Flange Distance	General
Full Denver	General
Fiasco Day	General
Francine Dee	General
Fudged Data	General
Flat Dimension	General
Flying Display	General
Fire Door	General
Factory Discontinued	General
for DUEL	General
Fixed Deposits	General
Foundation Degree	General
Free Dictionary	General
Facilitate data	General
Floor Drain	General
for Declaration	General
Flexible Data	General
For Documents	General
Friendship Designs	General
Front Drag	General
For Indiabix	General
Face Detection	General
Francesco Davide	General
Freeze-Drier	General
Family Dog	General
Felix Dzherenski	Governmental
Final Document	Governmental
Final Destination	Governmental
Feign Death	Governmental
Fare Dodger	Governmental
Formal Disclosure	Governmental
Fire Damper	Governmental
Flying Dutchman	Governmental
Fire Department	Governmental
Fiscal Deficits	Governmental
Fast Depleting	Governmental
Final Draft	Governmental
Fashion Doll	Governmental
Fern Durchgangszug	Governmental
Feed Directory	Governmental
FAIZABAD JN	Indian Railway Station
Fidei Defensor	International
Finance Director	Jobs
Fixes Diamlers	Jobs
Funky Drummer	Jobs
Failure Divergence	Maths
Finite Domain	Maths
Functional Dependency	Maths
Forecast Dispersion	Maths
Ferredoxins	Medical
Full Diaphragm	Medical
Familial Dysautonomia	Medical
Fully Developed	Medical
Freeze Drying	Medical
First Date	Messaging
Forum Discussion	Messaging
From Temporary Duty	Military and Defence
Fire Direction	Military and Defence
Focused Dispatch (exercise)	Military and Defence
Fuertes Defensas (exercise)	Military and Defence
Functional Description	Military and Defence
Finite Difference	Physics Related
Fusion Device	Physics Related
Front Derailleur	Regional
Filter Default	Softwares
Fault Detection	Space Science
Feed	Space Science
Flight Day	Space Science
Flight Deck	Space Science
Flight Director	Space Science
Freeze Dried	Space Science
Function Designator	Space Science
Flush Deck	Sports
Flying Dash	Sports
Fair Disclosure	Stock Exchange
Full Disclosure	Stock Exchange
Financial Derivatives	Stock Exchange
False Dive	Stock Exchange
Faizabad Junction railway station	Transport & Travel
Thai AirAsia	Transport & Travel