Computer Accessibility refers to the user friendliness of a computer system for all, regardless of their disability. It enables a person with a disability or impairment to use a computer. It is known as Assistive Technology. There are numerous types of impairment that impact computer usage. These include:
- Cognitive impairments and learning disabilities, such as dyslexia, attention deficit hyperactivity disorder (ADHD) or autism.
- Visual impairment such as low-vision, complete or partial blindness, and color blindness.
- Hearing impairment including deafness.
- Motor or dexterity impairment such as paralysis, cerebral palsy, or carpal tunnel syndrome and repetitive strain injury.
Launching Accessibility Options:
To launch accessibility options in WindowsXP, Click Start > Control Panel > Accessibility Options.
Sticky Keys is an accessibility feature to help computer users with physical disabilities, but it is also used by others as a means to reduce repetitive strain.
It is an accessibility function that tells the keyboard to ignore brief or repeated keystrokes, making typing easier for people with hand tremors.
It is an accessibility function which is designed for people who have vision impairment or cognitive disabilities. When
ToggleKeys is turned on, computer emits sound cues when the locking keys are pressed. A high sound is emitted when the keys are switched on and a low sound is emitted when they are switched off.
SoundSentry is designed to help users with auditory impairments. SoundSentry generates visual warnings, such as a blinking title bar or a flashing border, whenever the computer generates a sound.
ShowSounds instructs applications that convey information by sound, to also provide information visually, through text captions or informative icons.
High Contrast is an accessibility feature to assist people with vision impairment.
Cursor Options is also an accessibility feature that assists people with vision impairment by changing the blink rate and width of the cursor.
MouseKeys is an accessibility feature that assists people who have difficulty using a mouse. This option uses the keyboard (especially numeric keypad) as a pointing device instead of a mouse.
This tab enables you to configure accessibility options for all users.
Serial Keys is an accessibility feature that assists people that have difficulty using a keyboard or a mouse (or both). They can use special devices such as Sip, Puff and Breath Switches to provide input to the computer through Serial Ports.
Fill in the blanks
1.The option in Microsoft Windows XP used for helping users with physical disabilities and to reduce repetitive strain is ________.
2.Sound Sentry is designed to help users with __________ impairments.
3.The High Contrast option in Microsoft Windows XP is designed to assist people with ________ impairments.
4._______ is designed to assist people that have difficulty using a keyboard or a mouse.