Initialism of right-to-left.

(electronics) Initialism of register-transfer level. / (programming) Initialism of runtime library. / (aviation) Initialism of rudder travel limiter.

Initialism of Radeon Technology Group (a division of Advanced Micro Devices (AMD), who produces a brand of computer products). / Initialism of Radio Télévision Guinéenne (a public broadcaster in Guinea).

Initialism of radioisotope thermoelectric generator (a device that generates electricity from the natural decay of radioactive material). / (aviation) Abbreviation of radiotelegraph.

plural of RTG

(telecommunications) Initialism of round-trip time. / (computer graphics) Initialism of render-to-texture.

plural of RTT

Initialism of right to hire. / Initialism of regular trading hours.

(computing) Initialism of real-time operating system.

(photography, graphic design) Alternative form of RTL (right to left)