1. GPS – Global Positioning System
2. SMS – Short Message Service
3. AM - Anti Meridiem (Before Noon)
4. PM – Post Meriden (Afternoon)
5. GIF – Graphics Interchange Format
6. ISP – Internet Service Provider
7.LCD – Liquid Crystal Display
8.CC - Carbon Copy
9. BCC – Blind Carbon Copy
10. PDF – Portable Document Format
11. CC TV – Closed Circuit Television
12. UIDAI – Unique Identification Authority of India
13. PAN – Permanent Account Number
14. VIRUS – Vital Information Resources Under Seize
15. PIN – Personal Identification Number