The Force
T[1]
T[2]
TABLET
TABSOL
TAC
TACL
TACPOL
TAG
TAL
TALE
TALL
TAO[1]
TAO[2]
TARTAN
TASM
TASS
TAWK
Taxis
TBIL
Tbl[1]
TBL[2]
Tcl[1]
TCL[2]
TCL[3]
Tcode
TCOL
TCOL
Tcsh
Tcsim
TDF
TDFL
TECO
TELCOMP
Telescript
Telon
TELOS[1]
TELOS[2]
TELSIM
TempLog
TEMPO
Tempura
Ten15
TERMAC
Terse
TeX
TFDL
TGS-II
THEO
Theseus
ThingLab
Tinman
tinman+
TINT
Tiny
TIP
TIPL[1]
TIPL[2]
TK!Solver
TL0
TL1
TL/I
TMDL
TMG
TOK
Toronto Euclid
TPL[1]
TPL[2]
TPL[3]
TPS
TPU
TRAC
Trafola-H
Traits
TRANDIR
TRANQUIL
TRANS
TRANS-USE
TRANSCODE
TRANSIT
TRANSLANG
TREET
TREETRAN
Trellis
TRIGMAN
Trilogy
TRIX
troff
TROLL
True BASIC
TS
Tsim
TSL-1
Tui
Tuki
TUPLE
Tuple Space Smalltalk
Turbo Pascal
Turbo Prolog
Turing
Turing Plus
Turingol
TUTOR
Twentel
TWIG
TXL
TYPOL