RealTime Physics is a series of introductory laboratory modules that use computer data acquisition tools (microcomputer-based lab or MBL tools) to help students develop important physics concepts while acquiring vital laboratory skills. Besides data acquisition, computers are used for basic mathematical modeling, data analysis, and simulations. There are 4 RealTime Physics modules: Module 1: Mechanics, Module 2: Heat and Thermodynamics, Module 3: Electricity and Magnetism, and Module 4: Light and Optics.