Abstract: In one embodiment, a four-input, four-output bin adder is disclosed. The bin adder comprises a two-by-three, multi-stage, cascaded array of two-input, two-output adder circuits. Each of the bin-adder input signals comprises a numeric data value and an associated address, and the bin adder is adapted to add together (a.k.a. accumulate) the numeric values of only those inputs signals having addresses that are the same. In particular, the inputs and outputs of the two-input, two-output adder circuits are connected together in such a way that each input signal is compared to every other input signal, in a round-robin configuration. If the associated addresses match, then the input signals' numeric data values are added (i.e., accumulated) and output as a single signal comprising the sum of the numeric data values and the common address.

Abstract: A method and apparatus for compiling data about the use of programs being used on a computer system by at least one user is disclosed. The method includes running a task logger on said computer system to monitor the action of each said user on their workstation to determine the use by each said user during a predetermined period and a text summarizer to provide a description of the content of said use. The invention further provides a computer system for compiling data about at least one user's work on a workstation, comprising a task logger module capable of monitoring monitor the action of each said user on their workstation to determine the use by each said user during a predetermined period, and a text summarizer module capable of providing a description of the content of said use.