A device and method for computerized product slicing are disclosed. The device includes a blade, an openable product holder capable of engaging/retaining therein the product and of communication with a product sensor, the product sensor which detects presence of product in proximity to the product holder and causes it to close upon the product, a slicing mechanism, and a weighing module designed and constructed to collect, retain and weigh slices of product and to communicate weight thereof to a CPU which accepts a data input from a user. The CPU is essentially responsible for control of the device and for display of data on a display included in the device. A method including the sequence of actions performed by the device is further disclosed.