SpeedFan - Hardware monitor for Windows that can access digital temperature sensors located on several 2-wire SMBus Serial Bus. Can access voltages and fan speeds and control fan speeds. Includes technical articles and docs.

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.

Argus Monitor - Argus Monitor is for monitoring and analyzing the temperature and the health status of the hardware parts of the system.

NumWorks - The graphing calculator that makes learning math easier.

Open Hardware Monitor - Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.

SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.