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Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Social-emotional agnosia, also known as emotional agnosia or expressive agnosia, is the inability to perceive facial expressions, body language, and voice intonation. [1] A person with this disorder is unable to non-verbally perceive others' emotions in social situations, limiting normal social interactions.
Standard DMA, also called third-party DMA, uses a DMA controller. A DMA controller can generate memory addresses and initiate memory read or write cycles. It contains several hardware registers that can be written and read by the CPU. These include a memory address register, a byte count register, and one or more control registers.
When you find an article that you don't have time to read, print the article to read on-the-go or at a later time. To print an article: 1. Go to the menu bar on your computer. 2. Hover over the file tab. 3. Select print. This will take you directly to a print preview window that will display the article you are attempting to print. 4. Click ...
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]
The user can switch between controls (such as buttons) available on the screen and the captions and control contents will be read aloud and/or shown on a refreshable braille display. Screen readers can also communicate information on menus, controls, and other visual constructs to permit blind users to interact with these constructs.
2. Eddie Van Halen. The guitar virtuoso of Van Halen fame couldn’t read music, which is kind of crazy considering all the classical runs and flourishes that turn up regularly in his playing.
Visually impaired computer users who cannot use a standard computer monitor can use it to read text output. Deafblind computer users may also use refreshable braille displays. Speech synthesizers are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances.