A to Z Full Form Page 9

A to Z Full Form Page 9/12

S.N.	Short Form	Full Form
221	NIIT	National Institute of Information Technology
222	NRI	Non-Resident Indian
223	NSDL	National Securities Depository Limited
224	OBC	Other Backward Class
225	OCR	Optical character recognition
226	OMR	Optical Mark Reader
227	OOP	Object oriented programming
228	OS	Operating system
229	OSS	Open source software
230	OTP	One Time Password
231	PAL	Phase alternation Line
232	PAN	Permanent Account Number
233	PC	Personal computer
234	PCB	Printed circuit board
235	PCI	Peripheral component interconnect
236	PCS	Provincial Civil Service
237	PDF	Portable document format
238	PGDCA	Post Graduate Diploma in Computer Application
239	PGDM	Post Graduate Diploma in Management
240	PHD	Doctor of Philosophy
241	PIN	Postal Index Number
242	PM	Phase modulation, Post Meridiem
243	PNG	Punjab National Bank
244	PNR	Passenger Name Record
245	PO	Probationary Officer & Post Office
246	POP	Post Office Protocol
247	POST	Power on self test
248	POLICE	Polite Obedient Loyal Intelligent Courageous and Efficient
249	PPM	Pages per minute
250	PPP	Point-To-Point Protocol