▁styles . ▁ ▁It ▁is ▁commonly ▁used ▁embedded ▁into ▁C ▁applications , ▁for ▁rapid ▁pro tot yp ing , ▁script ed ▁applications , ▁GUI s , ▁and ▁testing . ▁T cl ▁interpre ters ▁are ▁available ▁for ▁many ▁operating ▁systems , ▁allowing ▁T cl ▁code ▁to ▁run ▁on ▁a ▁wide ▁variety ▁of ▁systems . ▁Because ▁T cl ▁is ▁a ▁very ▁compact ▁language , ▁it ▁is ▁used ▁on ▁embedded ▁systems ▁platforms , ▁both ▁in ▁its ▁full ▁form ▁and ▁in ▁several ▁other ▁small - foot print ▁versions . ▁ ▁The ▁popular ▁combination ▁of ▁T cl ▁with ▁the ▁T k ▁extension ▁is ▁referred ▁to ▁as ▁T cl / T k , ▁and ▁enables ▁building ▁a ▁graph ical ▁user ▁interface ▁( G UI ) ▁n atively ▁in ▁T cl . ▁T cl / T k ▁is ▁included ▁in ▁the ▁standard ▁Python ▁installation ▁in ▁the ▁form ▁of ▁T k inter . ▁ ▁History ▁ ▁The ▁T cl ▁programming ▁language ▁was ▁created ▁in ▁the ▁spring ▁of ▁ 1 9 8 8 ▁by ▁John ▁O uster h out ▁while ▁working ▁at ▁the ▁University ▁of ▁California , ▁Ber keley . ▁Origin ally ▁" born ▁out ▁of ▁fr ustration ", ▁according ▁to ▁the ▁author , ▁with ▁program mers ▁de vis ing ▁their ▁own ▁languages ▁intended ▁to ▁be ▁embedded ▁into ▁applications , ▁T cl ▁gained ▁accept ance ▁on ▁its ▁own . ▁O uster h out ▁was ▁awarded ▁the ▁AC M ▁Software ▁System ▁Award ▁in ▁ 1 9 9 7 ▁for ▁T cl / T k . ▁ ▁The ▁name ▁originally ▁comes ▁from ▁Tool ▁Command