1. Input and output devices for visually impaired users
Bayan Alalawi

2. Outline: Input & output Definition Scanning and reading device
What is Screen reader
The content of the credit card for the blind
The content of touch screen cell phone for the blind

3. What is input?
Data or instructions entered into memory of computer
Input device is any hardware component that allows users to enter data and instructions

4. What is output?
Data that has been processed into a useful form.
Output device is any hardware component that can convey information to one or more people.

5. Bright-F
Bright–F, distinguishes different colors and speaks out the same through a speaker. vision changed into sounds.

8. ViiO Travel Aid helps visually impaired people to travel independently

9. Viitect is a device that detects any hanging obstacles attached to a conventional white cane. Viitect alerts the user by activating vibration function to the user’s thumb

10. Viirect is voice-interactive GPS to provide information as well as receive audio directional feedback for optimum practicality.

11. Screen reader
A screen reader is a software application that attempts to identify and interpret what is being displayed on the screen

12. Credit Card for The Blind:
The Credit Card for the Blind makes use of fingerprint recognition technology.

13. The payment sum is displayed over the card with Braille.

14. Voice Stick : Portable Text Scanning Device.

15. When it scans printed letters, the OCR (Optical Character Recognition) function recognizes the texts and converts the written information into a voice.

16. Touch Mobile Phone
a touch screen cell phone for the blind combines technologies of blind-touch screen (Braille), voice systems and programs to function as regular phone, GPS, book reader and object recognizer.  

17. Referances: http://en.wikipedia.org/wiki/Screen_reader