50Und5tat10n 11: U51n9 5 0 U n d a n d 5 0 U n d 5paCe5 t0 Pr0V1de H19h 8andw1dth C 0 m p u t e r 1nterfaCe5 t0 the V15Ua11y Hand1Capped Arthur L Kar5hmer ¢ R09er 7. Hart1ey C0mputer 5c1ence Department C0mput1n9 Re5earch La60rat0ry New Mex1c0 5tate Un1ver51ty La5 Cruce5, NM 88003 U5A kar5hmer ¢nm5u.edu rth ¢nm5u.edu Ken Paap Department 0f P5ych0109y C0mput1n9 Re5earch La60rat0ry New Mex1c0 5tate Un1ver51ty La5 Cruce5, NM 88003 U5A kenp ¢nm5u.edu 1ntr0duct10n 7he need t0 1end 5upp0rt t0 v15ua11yhand1capped c0mputer u5er5 ha5 6een ackn0w1ed9ed f0r 50me t1me. Many 5y5tem5 have 6een de519ned and deve10ped 0ver the year5 and a few have even made 1t t0 market. 1n 50mewhat typ1ca1 pr0ject5 [Y0rk ¢ Kar5hmer - 1991, 1989; Kar5hmer et. a1. - 1987, 1986] the ph11050ph1ca1appr0ach taken wa5 t0 rede519n the c0mput1n9 env1r0nment t0 5u1t the v15ua11yhand1capped u5er. 7he5e 5y5tem5 1nv01ved the 5ynthe515 0f techn01091e5 un14ue1y 5u1ted t0 the v15ua11y hand1capped t0 pr0v1de a m0re c0mf0rta61e 1nterface w1th0ut much c0ncern f0r the 6andw1dth 0f the 1nterface, and 1t wa5 5u1ted 0n1y f0r u5e 6y the v15ua11y1mpa1red. Recent th0u9ht ha5 1ead u5 t0 6e11eve that th15 wa5 a ph11050ph1ca11y1nc0rrect appr0ach. 0ur current appr0ach
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