Answer the below in 300 words or more:

Discussion Points:

 

1. Your textbooks explains input and output devices as noted below. Review the descriptions and share your use of various input and output devices.

 

Input hardware consists of devices that translate data into a form that the computer can process—for example, keyboards and scanners. The people-readable form of the data may be words, but the computer-readable form consists of binary 0s and 1s, or off and on electrical signals or light pulses.

Output hardware consists of devices that translate information processed by the computer into a form that humans can understand—for example, display screens or printers.

2. Some of the adverse health effects of computers include repetitive stress injuries, eyestrain and headache, and back and neck pains. We also consider the effects of electromagnetic fields and noise. Discuss some of ways to avoid repetitive stress injuries after exploring the websites below:

www.webreference.com/rsi.html

http://kidshealth.org/teen/safety/first_aid/rsi.html

www.eecs.umich.edu/~cscott/rsi.html

http://ergonomics.about.com/od/treatmentprevention/tp/prevwristrsi.htm