Parallax Inc. is a privately held American electronics company founded in 1987 by Chip Gracey, headquartered in Rocklin, California. The company specializes in developing microcontroller-based educational tools, hobbyist electronics, and professional development platforms. Its flagship product line is the BASIC Stamp series of microcontroller modules, which revolutionized electronics prototyping with their simplicity and ease of use. Another major product line is the Propeller multicore microcontroller, renowned for its parallel processing architecture and high-speed flexibility. Parallax also offers a broad range of sensors, including the PING))) ultrasonic sensor, motion detectors, and environmental sensors, along with robotics kits like the ActivityBot and Stingray robot. These products are widely adopted in STEM education, maker communities, and industrial prototyping. In the global electronic components market, Parallax holds a niche leadership position as a premier provider of educational microcontroller platforms. The company fosters a strong learning ecosystem with free tutorials, textbooks, and an active online community. While not a semiconductor giant, Parallax's innovative technology, especially the Propeller chip, is recognized for its unique multicore design. The company continues to empower inventors, educators, and engineers worldwide.