Input / Output Device & Ergonomic Quiz

An input device is a device, which sends information into the computer. Dictionay.com definition of output device.

An output device is a device, which receives information from the computer to present to the user. Dictionay.com definition of output device.

Examples of input and output devices discussed in class. You will be asked to identify some or all of these devices.

Input Devices	Output Devices
Keyboard	Speaker
Mouse	Printer
Scanner	Projector
SMART Board	Monitor or Sceen
Microphone	Headphones

Ergonomics is the good positioning at the computer to maximize productivity and reduce bodily stress levels. Dictionary.com definition of ergonomics.

4 key elements to good ergonomic positioning at the computer

1. Back - Sit up straight with a natural curve in on the lower back (don't lean back into the chair)
2. Feet - Flat on floor
3. Arms - forearm and upper arm form a 90 degree angle (elbows bent to a 90 degree angle)
4. Wrists - straight out from forearm and don't rest on counter top or anything. They should hover directly over the keyboard so the fingers drop down to the home keys.