Abstract: A portable battery-powered golf analyzing device includes a keyboard usable in an input mode to insert data describing each golf shot made by a player. The data is formed into a digital word and stored in memory. The memory is of a type which is not erased unless a specific signal is intentionally applied thereto. In an output mode, the keyboard is used to form a digital word describing desired data. The memory is then searched and each stored word is compared with the inserted word. Correspondence between the inserted and stored words is counted and the results displayed. A receptacle for the portable unit includes a power supply for recharging batteries in the portable unit and circuits for applying an erasing potential to the memory. Indicators instruct the operator through the sequence of steps in entering a description.