Each of memory cells of a ferroelectric nonvolatile memory includes a MOS field effect transistor and first and second ferroelectric capacitors whose remnant polarization amounts are substantially equal to each other. The video-signal output unit outputs a video signal. The moving mechanism can drive the operating table to move on a horizontal plane and ensure the operating table can reach any location within a valid region on a horizontal plane, the moving mechanisms in the X and Y directions can operate separately as well as cooperatively, and the multiple angle rotation mechanism drives the surface of the operating table to tilt. The touchscreen platform can be used as an in-home consumer touchscreen with uses including home management, energy management, security, surveillance, health monitoring, elder care and other consumer applications. The content accessor server receives a content ID and a template URL containing instruction for constructing the corresponding dynamic URL from the publisher server.