PIN is an acronym...

i say PIN

there's another one just like that but i can't think of it right now lol...

Don't sweat the small stuff... leads to an early grave...

for the same reason they say atm machine...

They say "SIN Number" too.. same deal.

For the same reason they call it a PAIR of pants

ABS system = Anti-lock Braking System system
AC current = Alternating Current current
ARC computing = Advanced RISC Computing computing = Advanced Reduced Instruction Set Computing Computing computing
ASB Bank = Auckland Savings Bank Bank
ASCII code = American Standard Code for Information Interchange code
ATI Technologies Inc. = Array Technologies Incorporated Technologies Incorporated (Note that while "ATI Technologies" is also redundant, "ATI technologies" is not. See below.)
ATM machine = Automatic Teller Machine machine
CD-ROM disc = Compact Disc - Read Only Memory disc
CRT tube = Cathode-Ray Tube tube
CRC check = Cyclic Redundancy Check check
DC current = Direct Current current
DSW shoe warehouse = Designer Shoe Warehouse shoe warehouse
GUI interface = Graphical User Interface interface
HDRI image = High Dynamic Range Image Image
HIV virus = Human Immunodeficiency Virus virus
IBAN Number = International Bank Account Number number
ICBM missile = Intercontinental Ballistic Missile missile
IM message = Instant Message message
IP protocol = Internet Protocol protocol
IRC chat = Internet Relay Chat chat
ISBN number = International Standard Book Number number
IT technologies = Information Technology technologies
LED diode = Light Emitting Diode diode
LCD display = Liquid Crystal Display display
MNB Bank = Malvern National Bank Bank
MSDS sheet = Material Safety Data Sheet sheet
Microsoft MS-DOS operating system = Microsoft Microsoft Disk Operating System operating system
NT Technology = New Technology technology (although other, non-redundant, expansions of "NT" may be equally valid)
NTFS file system = N T File System file system
PDF format = Portable Document Format format
PIN number = Personal Identification Number number
RDC car = Rail Diesel Car car
RAID array = Redundant Array of Independent Disks array
(MMO)RPG game = (Mass Multiplayer Online) Role-Playing Game game
SAM missile = Surface-to-Air Missile missile
SCSI interface = Small Computer System Interface interface
SDI defense initiative = Strategic Defense Initiative defense initiative
TCBY yogurt = The Country's Best Yogurt yogurt
The New TNN = The New The National Network
VIN number = Vehicle Identification Number number
VIP person = Very Important Person person
UPC code = Universal Product Code code

redundant it is

it's easier to say PIN than "personal identification number", same with all abbrevations, come on...

me too *shrug*

Ouch, the truth hurts.

I was about to say this blunder too.

SIT Tone - Standard Industry Tone Tone (old telecom reference ;) )

Department of Redundancy Department...how may I help you?

I say you are a genius..

While the comment is flattering, I really have to wonder the sincerity of that since it comes from a klikrevenue sigwhore.

I fucking hate TLA's*















*T.L.A. = Three Letter Acronym