A n 0verv1ew 0 f 7 3 - P 8 E (Pr09ramm1n9 5upp0rt f0r the v15ua11y 1mpa1red) 8 r y a n t W. Y0rk C0mputer 5c1ence Department 805t0n Un1ver51ty 805t0n, M A 02215 Arthur 1. Kar5hmer C0mputer 5c1ence Department C0mput1n9 Re5earch La60rat0ry N e w Mex1c0 5tate Un1ver51ty La5 Cruce5, N M 88003 1.0 1ntr0duct10n 7he 90a1 0f th15 w0rk 15 t0 pr0v1de hardware and 50ftware 5upp0rt f0r v15ua11y1mpa1red 1nd1v1dua15wh0 w15h t0 wr1te c0mputer pr09ram5. 7he hardware 5upp0rt c0n515t5 0f a m0d1f1edper50na1 c0mputer ca11ed the ¢ ¢7a1k1n9 7act11e 7erm1na1 (73) ¢ and the 50ftware 5upp0rt 15 a Pr09ramm1n9 env1r0nment referred t0 a5 P8E f0r Pr09ramm1n9 8y Ear. 7 3 and P8E have 6een deve10ped 5eparate1y6y the 9r0up5 at New Mex1c0 5tate Un1ver51ty and 805t0n Un1ver51ty re5pect1ve1y; we p1an t0 1nte9rate them dur1n9 1989. 1n th15 rep0rt we 5ummar12e the under1Y1n9 de519n pr1nc1p1e5, the maj0r c0mp0nent5, 0ur ear1y exper1ence w1th the 5y5tem, and p1an5 f0r future deve10pment. 7h15 paper 15 an extended a651ract 0f a paper ent1t1ed"70015 t0 5upp0rt 811nd Pr09rammer5 ¢ ¢ [8]. 2.0 7a1k1n9 7act11e 7erm1na1 (7 3) 7he 7a1k1n9 7act11e 7erm1na1 [2,3] wa5 0r191na11y de519ned a5 a h19h-funct10n, 10w c05t term1na1 f0r 611nd c0mputer u5er5.
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