The meaning of the Acronym POS is...

POS is

• Port Of Support
• Peacetime Operating Stocks
• Peacetime Operational State
• Piece Of Shit

More Meanings For POS:

• Programmable Option Select
• Point Of Sale
• Process Oriented System
• Parallel Operating System
• Personal Operating System
• Point Of Sales
• Programmable Option Select
• Programmable Option Select
• Packet Over SONET
• Point Of Service
• Parents Over Shoulder
• Put On Shelf
• Persistent Object System
• Performance Optimizing System
• Packet Over SONET

POS is also in:

• Drivers
• General
• Hardware
• Networking
• SMS
• Software
• Telecom