The meaning of the Acronym TAC is...

TAC is

• Totally Arm Chair
• Talks All Crap
• Take A Crap

More Meanings For TAC:

• This Ain't Controls
• Technical Assistance Center
• Terminal Access Controller
• Totally Accurate Controller
• Type of Address Code
• Tactical
• Take A Chance
• Twisted Application Configuration
• Terminal Access Circuit
• Totally Arm Chair
• Talks All Crap
• Take A Crap
• The Astronomy Connection
• Telescope Allocation Committee
• Transparent Audio Compression

TAC is also in:

• Astronomy
• Chat
• Electronics
• General
• Networking
• Security
• SMS
• Software
• Telecom