Samsung has started this year's consumer electronics fair IFA in style, launching three new All-in-One (AiO) PCs that feature innovative touch-screen technology. The AiO PCs feature touch screens with resolutions of 1920 x 1800 and are designed to run Windows 8. The AiOs also responded to what Samsung call, "hand gesture recognition features," meaning that users can "swipe" the screen without touching it from a distance of up to 90cm away.

The Series 5 boasts a 21.5 inch screen while the Series 7 clocks in at 23 and 27 inches respectively. The larger Series 7, designed for use in the family room, boasts Intel Core i5, 6GB of 1,600MHz DDR3 memory, a 1TB hard-disk drive and an Intel HD Graphics 4000 processor.

All three versions include DVD +/-RW Super Multi Dual Layer optical drives, HD audio, 1.3-megapixel cameras for the hand-gesture-recognition features, Wi-Fi and Bluetooth support, High-Definition Multimedia Interface (HDMI) and USB 2.0 and 3.0 slots, and wireless keyboards and mice.

The  new devices are slated to arrive in stores on October 26 -- the Series 5 starting at $749 and the Series 7 ranging from $1,099 to $1,699.