Editing TAC (section)

==Science and technology==
* [[Motorola TAC]], brand used by Motorola for their early mobile phones (Total Area Coverage) 
* TAC, a codon for the amino acid [[Tyrosine]]
* TAC, a mixture of [[tetracaine]], adrenaline and cocaine, a liquid sometimes given as a soothing gel to children
* TaC, chemical formula for [[Tantalum carbide]]
* <code>tac</code>, a Linux command that concatenates lines in reverse, named by analogy with <code>[[cat (Unix)#tac|cat]]</code>
* [[TAC (software)]], an instant messaging and chat client program
* [[TAC-2]], game controller compatible with Atari 2600 video game systems
* [[Terminal Access Controller]], a host computer that accepts terminal connections
* [[Thermally Advantaged Chassis]], an Intel computer specification
* [[Three-address code]], a representation of intermediate code used by compilers
* [[Time-activity curve]], tracer concentration within a region of interest within dynamic image plotted over time
* [[Triacetyl cellulose]], a polymer used in display applications
* [[Trigeminal autonomic cephalgia]], a type of headache that occurs on one side of the head
* [[Type Allocation Code]], part of a mobile device's IMEI identifying maker and model
* TAC (Total Action Center), codename for the [[Xbox (console)|Xbox]] 2001 console.