19.2 Keyboard Styles
Keyboards are available in two distinct styles:
- Traditional keyboard
-
A traditional
keyboard is rectangular and has a constant slope, from
highest at the rear to lowest at the front. These keyboards are
available in various footprints, including standard (19" x
8"); midsize (18" x 7"); and space-saver (17" x
6.5" or less). Size is important to the extent that large keyboards
occupy considerable desk space and may not fit some keyboard drawers.
- Ergonomic keyboard
-
An ergonomic
keyboard uses a split face and variable
slopes, which allow more natural and comfortable hand and wrist
positions. Most ergonomic keyboards are as large as or larger than
standard traditional keyboards, not least because they include a
built-in wrist rest. Some claim that ergonomic keyboards help reduce
Repetitive Stress Injury (RSI) problems such as
Carpal Tunnel Syndrome (CTS), but we have seen
no credible evidence to support these claims. The secret to avoiding
such problems, regardless of what keyboard style you use, is to take
frequent breaks and to avoid using the keyboard continuously for more
than an hour or so at a time.
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