On 13 Giu, 11:22, Chris Angelico <ros...@gmail.com> wrote: > On Mon, Jun 13, 2011 at 6:42 PM, Yang Ha Nguyen <cmp...@gmail.com> wrote: > > > Could you show which studies? Do they do research just about habit or > > other elements (e.g. movement rates, comfortablility, ...) as well? > > Have they ever heard of RSI because of repetitive movements? > > And did any of the studies take into account the fact that a lot of > computer users - in all but the purest data entry tasks - will use a > mouse as well as a keyboard? The classic "grasp mouse" sitting to the > right of the keyboard mandates either a one-handed typing style (left > hand on keyboard, right hand on mouse) or constant re-aiming and > re-grasping. Or you can use a touchpad; what are the consequences of > that on typing speed? And my personal favorite, the IBM TrackPoint - a > stick mouse between the G/H/B keys, a design which other manufacturers > have since copied (although IMHO the IBM/Lenovo type still beats the > others hands down) - keep your hands where you want them and just > reach out to grab the mouse with your index finger, or slide your > fingers one key over (works fine if you're used to it). > > Typing speed depends on a lot more than just your layout, and it's > going to be nearly impossible to narrow it down viably. > > Chris Angelico
Moreover, I've seen people move the mouse faster than I could achieve the same task by keyboard. To me, the advantage of ergonomic layout is not about speed - I'm sure there will always be people able to type blazingly fast on any random layout - but about comfort. Even when typing slowly, I don't want my fingers and my hands neither moving much more nor contorting much more than necessary. -- http://mail.python.org/mailman/listinfo/python-list
