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1.
A mag 'bout hacking and computer stuff, with a emphasise on freedom of rights and stuff. Edited by emmanuel goldstien.
2600 is a kicking mag.
by censor January 24, 2004
 
2.
2600 Hz was he frequency emitted by a toy whistle from a Cap'n Crunch box that could allow the user to make free phoe calls.
by Supertbone February 14, 2003
 
3.
Great quarterly published magazine. Very informative.
I picked up 2600 at Barnes & Noble today, it's a sweet issue.
by MoonKnight November 13, 2002
 
4.
Also refers to the Atari 2600, which is the root of almost all video games today--not really Pong like is often reported.

And the ARP 2600.
Got any new 2600 games?
by Tentochi February 12, 2005
 
5.
2600 is a quarterly based on the idea of "See Something, Say Something ." There are international meetings every week based on your local area/city/state/country.
Dude 1: Same time next week.
Dude 2: Same place bro.
Dude 1: Aight.
Dude 2: Ohh, I am trying to bring my bro to the next 2600 meeting he has some good info about Network Crypto.
Dude 1: That's great we always looking for new faces.
by The 619 Guy November 17, 2007
 
6.
A hard copy hacking/phreaking magazine.

Before 1995, 2600 was a fine publication. The direction it's going in now is starting to piss me off!
Why doesn't 2600 print any good phreaking related material anymore?
by Anonymous August 09, 2003
 
7.
a leet h4x0rs number
he was reading 2600 at the l33t h4x0r convention
by lord d357R05 September 07, 2002