What’s The Difference Between Acronyms vs. Abbreviations?

Abbreviation


An abbreviation is a short form of a word or phrase. Abbreviation is used to save time and space, to avoid the repetition of long words. It include the many possible variations. Some abbreviation are formed by omitting all but the first few letters of a word , this kinds of abbreviation end with a period. Example : Mar. for March and  Int. for Interest

Other abbreviation by omitting letters from the middle of the word and its end with a period.
Example :Pri. from Private and Dr. for Doctor. Abbreviation for the names of states are two capitalized letters. Example UP for Uttar Pradesh and MP for Madhya Pradesh.

Acronyms vs. Abbreviations


Acronyms 

Acronyms are abbreviations formed from the initial letters of an expanded phrase and usuallly do not include periods. Example: RTC for Real Time Clock and IP for Internet Protocol
Some Acronyms are pronounced as words. Example: ISRO for International Space Research Organization.
FIFO for First in First Out.

Diffrence between Abbreviation and Acronyms 
Abbreviation and Acronyms both are used to refer to a shortened form. Acronyms are used to shortened form of phrase and is made up of initial letters of phrase. 
Example :-  ISRO for International Space Research Organization.
ASAP from "as soon as possible"
Abbreviation are used to shortened form of words or phrases and its not necessarily made up of initial letters of phrase or word. 
Example: ASAP from "as soon as possible" and appt from "for appointment" are both considered abbreviation , but only ASAP  is an acronym. Acronyms are type of Abbreviation.

Acronyms and Abbreviation

UNIVAC - Universal Automatic Computer
ENIAC -   Electronic Numerical Integrator And Computer
EDVAC -  Electronic Discrete Variable Automatic Computer
EDSAC -  Electronic Delay Storage Automatic Calculator
FORTRAN - Formula Translation
COBOL - Common Business Oriented Language
IC -            Integrated Circuit
IBM -        International Business Machines Corporation
DTP -        Desktop Publishing
CPU -       Central Processing Unit
BIOS -      Basic Input Output System
ROM -      Read Only Memory
RAM -       Random Access Memory
EPROM -  Erasable Programmable Read Only Memory
PROM -     Programmable Read Only Memory
ALU -         Arithmetic Logic Unit
EXE -         Executable
ECP -          Extended Capabilities Port
GPU -         Graphical Performance Utility
VDU -         Visual Display Unit
CODASYL- Conference On Data Systems Languages
FIFO -          First in First Out
GIGO -         Garbage- in- garbage Out
LIFO -           Last in First Out
HTTP -          Hypertext Transfer Protocol
WWW -         World Wide Web
GIF -              Graphics Interchange Format
EDP -             Electronic Data Processing
EFT -             Electronic Fund Transfer
FTP -             File Transfer Protocol
OCR -            Optical Character Recognition
OMR -            Optical Mark Recognition/ Reading
PDF -             Portable Document Format
HTML -        Hyper Text Markup Language
NEFT -          National Electronic Fund Transfer
MICR -         Magnetic Ink Character Recognition
IFSC -           Indian Financial System Code
ISP -              Internet Service Provider
ECS -             Electronic Clearing System
CST -              Central Sales Tax
CRR-              Cash Reserve Ratio
UDP -              User Datagram Protocol
RTC-               Real Time Clock
IP -                  Internet Protocol
CAG -             Comptroller and Auditor General
FERA -           Foreign Exchange Regulation Act
ISRO -             International Space Research Organization
ISDN -             Integrated Services Digital Network
SAARC -         South Asian Association for Regional Co-operation
AHRL -            Asian Human Right Commission
JPEG -              Joint Photo Expert Group
URL -                Uniform Resource Locator
IRDP -               Integrated Rural Development Programme
GDP -                Gross Domestic Product
FDI -                  Foreign Direct Investment
EPFO -              Employees Provident Fund Organization
CFRA -              Combined Finance & Revenue Accounts
GPF -                 General Provident Fund
GMT -                Global Mean Time
GPS -                  Global Positioning System
GNP -                  Gross National Product
SEU -                   Slightly Enriched Uranium
GST -                   Goods and Service Tax
GOOGLE -         Global Organization of Oriented Group Language of Earth
YAHOO-             Yet Another Hierarchical Officious Oracle
WINDOW -        Wide Interactive Network Development for Office Work Solution
COMPUTER -    Common Oriented Machine Particularly United and Used Under Technical                                     and Educational Research
VIRUS -                Vital Information Resources Under Siege
UMTS -                 Universal Mobile Telecommunications System
AMOLED -           Active - Matrix Organic Light-emitting diode
OLED -                   Organic Light-emitting diode
IMEI-                     International Mobile Equipment identity
HDFC -                  The Housing Development Finance Corporation
CBS -                      Core Banking Solutions
IPO -                      Initial Public Offering
NPAs -                    Non- Performing Assets
PAN -                      Permanent Account Number
POS -                      Point Of Sale
PLR -                      Prime Lending Rate
SDR -                       Special Drawing Rights
SLR -                        Statutory Liquidity Ratio
HSBC -                    Hong Kong and Shanghai Banking Corporation
ICICI -                     Industrial Credit and Investment Corporation Of India
IDBI -                       Industrial Development Bank of India
IDFC -                      Infrastructure Development Finance Company
UCO-                        United Commercial Bank

A.S.L.V. -                 Augmented Satellite Launch Vehicle
I.C.U.  -                    Intensive Care Unit
A.T.M.  -                  Automated Teller Machine
C.T.S. -                     Cheque Transaction System
C.T.R.  -                   Cash Transaction Receipt