1) Classic fantasy game co 2) Dungeons & Dragons co 3) Dungeons & Dragons company 4) Dungeons & Dragons game co 5) Dungeons and dragons company 6) Dungeons and Dragons maker 7) Early Dungeons & Dragons co 8) Early role-playing game co 9) Old Dungeons & Dragons co 10) Original D&D co 11) Original D&D company 
[company] TSR, Inc. was an American game publishing company and the publisher of Dungeons & Dragons (D&D). When Gary Gygax could not find a publisher for D&D, a new type of game he and Dave Arneson were co-developing, Gygax and Don Kaye founded Tactical Studies Rules in October 1973 to self-publish their products. However, needing immediate...
TSR stands for Terminate and Stay Resident. TSR programs stay in memory after being executed. They allow the user to quickly switch back and forth between programs in a non-multitasking environment, such as MS-DOS. Some viruses are TSR programs that stay in memory to infect other files and program. They are also called memory resident programs.
Totally Stuck in RAM -or- Totally Stupid Rules
Terminate and Stay Resident
Temporary Speed Restriction, often following track renewal work
Terminate and Stay Resident
Total Shareholder Return
Tavor Sporting Rifle
Telecommunications Service Request
See Tip Speed Ratio.