Ten thumbs typing tutor 4.7 series#

Ten thumbs typing tutor 4.7 series#

In fact, it actually seemed to make things slightly worse, by lowering the overall volume.Ĭlick to EnlargeThe S Series 15's backlit keyboard felt a bit too spongy for our liking. Not even the S Series 15's Dolby Home Theater audio software, which features three preset options including Movies, Music, and Games, could make our listening experience any better. Bass heavy songs like The Yin Yang Twins' 'Whisper Song,' were actually difficult to hear since the bass was nonexistent. While listening to Killswitch Engage's 'Rose of Sharon,' guitar riffs sounded as if they were coming out of an old AM radio. The laptop's two Intel High Definition Audio speakers made songs we regularly listen to sound almost unrecognizable. Unfortunately, Sony has once again saddled an otherwise good multimedia machine with lackluster audio performance. One of our biggest problems with Sony's previous version of the VAIO S Series 15 was its poor audio performance. And with a brightness rating of 270 lux, the S Series 15's display proved to be brighter than the category average of 259 lux, and above the Acer Aspire M5's 158 lux. We were able to watch videos and scroll web pages from a 45-degree angle without noticing any color distortion or washout. Viewing angles on the S Series 15's display were equally appealing. We were able to see much more content above the fold on sites such as, CNN.com and than we could on other notebooks with lower resolution screens. The hig-resolution display also made viewing websites a joy. As we watched a trailer for the next James Bond flick, 'Skyfall,' shadowy corridors looked like deep pools of black ink, while Daniel Craig's blue eyes sparkled like twin sapphires. Adequate designs of virtual keyboards for tablets show the potential for increased task performance and decreased muscle activity pertinent to typing activity and posture constraints imposed by non-traditional work positions.Click to EnlargeThe Sony S Series 15's 15.5-inch 1920 x 1080 display with IPS technology offers superb color and contrast. Practitioner Summary: Tablets have become widely used for a variety of tasks and have gradually expanded into the realm of mobile productivity and education. The split virtual keyboard showed potential to improve tablet ergonomics under various postures.

Typing performance decreased ( p < .001) with elevated neck extensor muscle activity ( p = .042) when the task duration prolonged.

Lap posture was associated with faster typing speed ( p = .018) and higher forearm muscle activity ( p < .05). The split virtual keyboard was found to be associated with faster typing speed (SPLIT vs STD, p = .015 SPLIT vs WIDE, p < .001) and decreased muscle activity of extensor digitorum communis (SPLIT vs STD, p = .021). Keystroke dynamics and muscle activity of the forearm and neck-shoulder regions were measured by electromyography. Eighteen healthy adults were randomly assigned to one of three postures (DESK, LAP, BED) to complete six sessions of 60-minute typing on a tablet with three virtual keyboards (STD, WIDE, SPLIT) twice in an experimental laboratory. This study aimed to determine the effects of virtual keyboard designs and postures on task performance and muscle activity during tablet use.