Hauv lub ntiaj teb niaj hnub no, thev naus laus zis ua lub luag haujlwm tseem ceeb hauv peb lub neej txhua hnub. Nws tau ua rau peb sib txuas lus tau zoo dua li yav dhau los. Ib qho ntawm cov cuab yeej sib txuas lus tseem ceeb tshaj plaws yog lub xov tooj, thiab lub keypad yog ib feem tseem ceeb ntawm nws. Txawm hais tias feem ntau ntawm peb tuaj yeem siv lub keypad xov tooj yooj yim, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tsis yog txhua tus tuaj yeem ua tau. Rau cov neeg tsis pom kev zoo, lub keypad ib txwm tuaj yeem yog qhov nyuaj, tab sis muaj ib qho kev daws teeb meem: 16 tus yuam sij Braille ntawm lub xov tooj keypads.
Cov yuam sij Braille, nyob rau ntawm tus yuam sij 'J' ntawm lub xov tooj dialing pad, tau tsim los pab cov neeg tsis pom kev siv xov tooj. Lub Braille system, uas Louis Braille tau tsim thaum ntxov xyoo pua 19th, muaj cov dots uas sawv cev rau cov tsiaj ntawv, cov cim qhia kab lus, thiab cov lej. 16 tus yuam sij Braille ntawm lub xov tooj dialing pad sawv cev rau cov lej 0 txog 9, lub cim asterisk (*), thiab lub cim pound (#).
Los ntawm kev siv cov yuam sij Braille, cov neeg uas tsis pom kev zoo tuaj yeem nkag mus rau cov yam ntxwv ntawm xov tooj tau yooj yim, xws li hu xov tooj, tshawb xyuas cov lus xa tawm, thiab siv cov tshuab tsis siv neeg. Cov thev naus laus zis no kuj tseem muaj txiaj ntsig zoo rau cov tib neeg uas lag ntseg lossis pom kev tsis meej, vim lawv tuaj yeem kov cov yuam sij Braille thiab siv lawv los sib txuas lus.
Nws tsim nyog sau tseg tias cov yuam sij Braille tsis yog tsuas yog siv rau hauv xov tooj xwb. Lawv kuj tseem tuaj yeem pom ntawm ATMs, cov tshuab muag khoom, thiab lwm yam khoom siv uas xav tau kev ntaus tus lej. Cov thev naus laus zis no tau qhib qhov rooj rau cov neeg tsis pom kev zoo thiab ua rau nws muaj peev xwm siv cov khoom siv niaj hnub uas ib zaug tsis muaj.
Xaus lus, 16 tus yuam sij Braille ntawm cov keyboards hu xov tooj yog ib qho kev tsim kho tshiab tseem ceeb uas ua rau kev sib txuas lus yooj yim dua rau cov neeg tsis pom kev. Nrog rau kev siv thev naus laus zis ntau ntxiv hauv peb lub neej txhua hnub, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev nkag tau yooj yim rau txhua tus neeg yuav tsum yog qhov tseem ceeb. Thaum peb txav mus tom ntej, nws yog ib qho tseem ceeb uas peb txuas ntxiv tsim kho tshiab thiab tsim cov kev daws teeb meem uas tso cai rau txhua tus siv thev naus laus zis rau nws lub peev xwm tag nrho.
Lub sijhawm tshaj tawm: Plaub Hlis-27-2023