HP’s TouchSmart sub-brand and its other AIOs should be no stranger to many PC advocates, but in case you’ve never come across one before, the company’s laid all of them out on one side of its Global Influencer Summit in Shanghai. Models range from the TouchSmart IQ770 launched back in 2007, all the way to the recently shipped Z1 workstation and even the just-announced t410 Smart Zero Client ; but the real gem of the booth is that little beige HP 150 right in the middle — it’s one of the first-ever touchscreen PCs, dating back to 1983, powered by an 8MHz Intel 8088 chip, ran MS-DOS and cost a mere $3,995. Whilst on the topic, HP’s Vice President of Industrial Design Stacy Wolff shared some interesting stats: his team found that much like laptops , there are very different screen size preferences across different regions, with the US showing strong interest in 20-inch and 23-inch HP AIOs, whereas China much prefers 20-inch over 21.5-inch and 23-inch
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Visualized: HP’s all-in-one PCs over the years, one from 1983
Most every touchscreen in the market today can only register your finger input as coordinates; that’s fine for most uses, but it leads to a lot of double-taps and occasionally convoluted gestures . A pair of researchers at Carnegie Mellon University , Chris Harrison and Scott Hudson, have suggested that shear touch might be a smarter solution. Instead of gliding over fixed glass, your finger could handle secondary tasks by pushing in a specific direction, or simply pushing harder, on a sliding display. 
Disney Research has announced some new touch interface technology that add extra gesture functionality to existing touchscreens and more exotic items like doorknobs and even the water’s surface. 
We could all use a little feedback, right? 
Deep-pocketed RED owners take heed. The company just demoed some pretty nifty module updates, including an OLED EVF, a new 9-inch touchscreen and the crown jewel Meizler Module, which brings to the table such features as wireless 1080p transmission, a wireless timecode transceiver and full wireless lens control — we’re particularly taken with that last feature, which effectively enables remote-controlled follow focus, aperture and zoom control. The new 9-inch will also come in handy with wireless control, making it easier to verify sharpness and exposure
Touchscreen gurus Atmel may not be the most famous name around, but you’ll find its gear inside devices like the Galaxy Note and the Galaxy Tab . Now it has pulled the dust-sheets from the latest innovation to emerge from its Californian headquarters: XSense. It’s a flexible, super-thin, film-based touch sensor that can be curved and contorted any which way you choose while retaining accuracy. 
One of the more irritating aspects of touchscreen gaming is almost certainly the inevitability of blocking the screen as you play — particularly with smaller devices like smartphones. A new peripheral being developed by Kelo University takes an interesting approach to the problem — using the device to transform the gadget’s camera into a three-axis joystick of sorts by detecting the movement of markings on the add-on. According to its creators, the accuracy of the joystick depends largely on the precision of the phone’s hardware. 
It’s been some time since we heard much from iRiver but the PMP maker is keeping busy with the snow-white B100. This capacitive touchscreen media player will offer up to 36 hours of music playback, or eight and a half hours of video watching. The 3.1-inch TFT screen has a resolution of 320 x 480, but it’s backed up by a (relatively) long list of media codecs, including OGG, WAV, APE and ASF compatibility
Have you ever noticed that there is a serious amount of lag between when you move your finger on a touchscreen and when it actually registers that input? Perhaps you haven’t, but most panels and controllers out there suffer from about a 100ms delay. For taps and slow swipes that’s not an issue but, as you wing your finger around the screen faster and faster (say, while quickly doodling in a painting app), the lag becomes quite apparent
As anyone who’s ever played a game of Duck Hunt is aware, there are ways of directly interacting with CRT monitors that don’t require any modifications to the display itself (a la resistive overlays). A group of students from the University of Hasselt in Belgium have now taken that idea further than most, however, and developed a glove-based system that uses a pair of phototransistors in the fingertips to detect the electron beam as it makes its way across the screen. While not quite “multitouch,” the student’s current setup (dubbed CRTouch) does let them draw on the screen with one finger and call up additional options (like an eraser or color palette) with the second. 
