Morse Code

Morse Code is a method for transmitting information, using standardized sequences of short and long marks or pulses -- commonly known as "dots and dashes" -- for the letters, numerals and special characters of a message. Originally created for Samuel Morse's electric telegraph in the mid-1830s, it was also extensively used for early radio communication beginning in the 1890s. However, with the development of more advanced communications technologies, the use of Morse Code is now largely obsolete, although it is still employed for a few specialized purposes, including navigational radio beacons, and by CW (continuous wave) amateur radio operators.

Morse code as an assistive technology

Morse code has a 21st century role as an assistive technology, helping people with a variety of disabilities to communicate. Morse can be sent by someone with severe motion disability, as long as they have some minimal motor control. In some cases this means alternately blowing into and sucking on a plastic tube ("puff and sip" interface). People with severe sensory disabilities (e.g. deaf and blind) can receive Morse through a skin buzzer. Products are available that allow a computer operating system to be controlled by Morse code, allowing the user access to the Internet and electronic mail. See: Morse2000 assistive communications site

Related Topics:
Assistive technology - Disabilities - Operating system - Internet

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