Computers have taken a dominant rol

Computers have taken a dominant role in our society so most new jobs require access to computers and the Internet. But what happens if a person is blind, deaf or motor-disabled? They needn't worry. The latest assistive technology is designed to help them use computers and do their jobs in the office, learn at school, or interact with their families at home. In addition, new laws oblige employers to adapt the workplace to accommodate disabled people. For example, companies in the USA are subject to the Americans with Disabilities Act or ADA. This makes it illegal for employers to discriminate against people with disabilities.The first task in adding assistive technology to a computer is to determine the specific needs of the disabled worker in question. To work effectively, most blind users need to have their computers adapted with technologies such as Braille, magnification, speech synthesis and Optical Character Recognition (OCR).Modern Braille keyboards have Braille lettering on keyboard overlays, allowing the blind user to easily identify each key. For Braille output, there are printers that can emboss Braille on both sides of a page at high speed.For someone with limited but usable vision, a screen magnification program may be appropriate. Magnification programs can enlarge text appearing on the screen by up to 16 times. In addition, they are now being developed with various levels of speech output capabilities, and work with all applications, including the Internet.A speech-synthesis system is used to read aloud the work on the computer. It has a speech-synthesizer, which produces the audio output, and a screen reader, the program which reads aloud text and menus from word processors, databases, and even the Web.OCR uses a flatbed scanner and specialized OCR software to read printed material and send the text to the computer. Then the PC can produce a copy of the text in Braille, a magnified copy, or a version that can be read aloud by a speech-synthesis system.Deaf computer users can overcome many communication difficulties with the aid of visual alerts and electronic note takers.Visual alerts are indicators that alert the deaf user when there is an error. So instead of hearing a sound, the user is alerted by a menu bar blinking or by a message on the screen. Electronic note-takers are devices which print out what is spoken in meetings or business presentations, where lip-reading is not possible.Motor-impaired workers unable to type on a standard keyboard can employ expanded or ergonomic keyboards, on-screen keyboards, adaptive switches and voice recognition systems.On-screen keyboards are software images of a keyboard that appear on the screen and may be activated with a trackball, touch screen, screen-pointing device, or eye movements. In an eye-gaze system, the keys on the virtual keyboard are activated by the user's eyes when they pause on a key for 2 or 3 seconds.Switches come in many shapes and sizes. They are operated by muscle movements or breathe control. For example, a pneumatic switch known as “sip and puff”- allows someone with quadriplegia to control the PC by puffing and sipping air through a pneumatic tube.Voice-recognition allows the computer to interpret human speech, transforming the words into digitized text or instructions.

Результаты (узбекский) 1:

Eng yangi ish o'rni kompyuter va internetga kirishni talab, shuning uchun Kompyuterlar bizning jamiyatda hukmron rol olgan. Bir kishi ko'r, kar yoki motor-nogiron bo'lsa nima bo'ladi? Ular tashvish yo'q. so'nggi Yordamchi texnologiya, ularni maktabda o'rganish, yoki o'zaro aloqada uyda o'z oilalari bilan, kompyuter foydalanish va ofis ham, ishlarini bajarish yordam berish uchun mo'ljallangan. Bundan tashqari, yangi qonunlar nogiron odamlarni kutib olish uchun ish joyini moslashtirish ish beruvchilar majbur. Misol uchun, AQSh kompaniyalari Nogironligi Qonun yoki orol bilan amerikaliklar tortiladi. Bu noqonuniy ish beruvchilar Nogironlar kamsitilishiga uchun qiladi.
Kompyuterga yordam texnologiya qo'shib birinchi vazifa savol NOGIRONLAR o'ziga xos ehtiyojlarini aniqlash uchun hisoblanadi. Ish uchun samarali, eng ko'r foydalanuvchilar kompyuterlar kabi Brayl, kattalashtirish, nutq sintezi va Optical Character Recognition (OCR) kabi texnologiyalar bilan moslashtirilgan bo'lishi kerak.
Zamonaviy Brayl klaviaturalar Brayl ko'r foydalanuvchi osonlik bilan har bir kaliti aniqlash imkonini beruvchi, klaviatura Bindirmeler yozuv bor. Brayl chiqishi uchun, yuqori tezlikda bir sahifada, har ikki tomon Brayl alifbosi emboss mumkin ulamolar ham bor.
Cheklangan, lekin foydalanish mumkin vahiyda bilan kishi uchun, bir ekran oshirish dasturi tegishli bo'lishi mumkin. Oshirish dasturlari 16 marta yuqoriga ekranda paydo matnni o'stiradi. Bundan tashqari, ular hozir shu jumladan, Internet, barcha ilovalar bilan turli nutq chiqish imkoniyatlarini darajalariga va ish bilan ishlab chiqilmoqda.
A nutq-sintez tizimi baland kompyuterda ish o'qish uchun ishlatiladi. Bu audio chiqish va ekran o'quvchi, ovoz chiqarib matn va so'z CPU, ma'lumotlar bazalari Menyu, va hatto Veb o'qiydi dasturini ishlab chiqaradi nutq-sentezleyiciyi ega.
OCR bir flatbed brauzerni foydalanadi va bosma materiallar o'qish va kompyuterga matnni yuborish OCR dasturini ixtisoslashgan. So'ngra Kompyuter Brayl matn, bir kattalashtirilgan nusxa, yoki nutq-sintez tizimi tomonidan ovoz chiqarib o'qish mumkin bo'lgan versiyasi nusxasini ishlab chiqarish mumkin.
Kar kompyuter foydalanuvchilari Visual ogohlantirishlar va elektron eslatma tutsa, albbatta, yordami bilan ko'plab aloqa qiyinchiliklarni yengish mumkin.
Visual ogohlantirishlar ko'rsatkichlar deb alert xato bor kar foydalanuvchini. Shunday qilib, o'rniga tovush eshitish, foydalanuvchi yonib bir menyu satrida tomonidan yoki ekranda bir xabar bilan ogohlantirish bo'ladi. Elektron eslatma-tutuvchilar lab-o'qish mumkin emas uchrashuvlar yoki ish taqdimotlar, so'zni qanday chop qurilmalar mavjud.
Motor esa nogiron kengaytirilgan yoki ergonomik klaviatura ish mumkin standart klaviaturada kiriting olmadi ishchilar, ekrandagi klaviaturalar, adaptiv kalitlari va ovoz aniqlash tizimlari.
Ekrandagi Klaviaturalar ekranda paydo bo'ladi va bir trekbol, sensorli ekran, ekran-ishora qurilma, yoki ko'z harakatlari bilan faollashtirilgan bo'lishi mumkin bo'lgan klaviatura dasturi tasvirlar bor. Ular 2 yoki 3 soniya davomida bir kalit ustida pauza qachon bir ko'z-ko'zlari tizimida, virtual klaviatura tugmalari foydalanuvchi ko'zi bilan faol bo'ladi.
Kalitlari ko'p shakl va darajada keladi. Ular mushak harakatlar tomonidan boshqariladigan yoki nazorat nafas etiladi. Misol uchun, deb nomlanuvchi bir pnevmatik switch "SIP va esish" - puffing va pnevmatik naycha orqali havo ichib tomonidan shaxsiy kompyuter nazorat qilish kuadripleji bilan birovni beradi.
Ovoz-tan raqamlashtirilgan matn yoki ko'rsatmalar so'z o'zgartiruvchi, kompyuter inson nutq talqin qilish imkonini beradi.