Abstract: Provided is a liquid crystal handwriting board. The liquid crystal handwriting board includes: a liquid crystal panel, a photosensitive assembly, and a control assembly; wherein the liquid crystal panel includes a first substrate and a second substrate that are opposite; the photosensitive assembly includes a plurality of photosensitive elements; and the control assembly is electrically connected to the liquid crystal panel and the photosensitive assembly, and is configured to determine position information of a pixel region for erasure by detecting position information of target light irradiated to the liquid crystal panel by the photosensitive assembly and supply a pixel voltage to the plurality of pixel electrodes in the pixel region for erasure, such that a voltage difference is present between the plurality of pixel electrodes in the pixel region for erasure and the common electrode.

Abstract: An apparatus comprises a processing device configured to determine one or more testing goals for testing to be performed on one or more of a plurality of information technology assets of an information technology infrastructure and to select two or more of a plurality of testing plans based at least in part on scores assigned to respective ones of the plurality of testing plans, the assigned scores characterizing whether respective ones of the plurality of testing plans meet the determined one or more testing goals. The processing device is further configured to generate, utilizing one or more machine learning-based genetic algorithms that take as input the selected two or more testing plans, one or more additional testing plans, and to execute the one or more additional testing plans on the one or more of the plurality of information technology assets of the information technology infrastructure.