Abstract: A system for generating data for input to a computer representing the length of time the worker has spent at a workstation performing a task includes portable memory circuit, a data entry circuit, and a data reading circuit. The memory circuit stores data relating to the task. The data entry circuit is located at the workstation and is adapted to electrically connect to the memory circuit and automatically and periodically writes into the memory circuit data program into the entry circuit which relates to the task at the workstation. The data reading circuit is electrically connected to the computer and is also adapted to electrically connect to the circuit. The data reading circuit transfers into the computer the data written into the memory circuit by the data entry circuit.