60.0 MB (60.0 MB compressed)
5928 x 3538 pixels
50.3 x 30.0 cm ⏐ 19.8 x 11.8 in (300dpi)
MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Editorial use only.
Educational circuit board. Circuit board designed for use in school lessons to demonstrate how the logic of electronic switches works. This lesson is referred to as a 'decisions module'. Illustrated here are the three main NOT, AND and OR logic gates (centre), with the inputs (left) and outputs (right) also shown. These include slide and push switches, light and temperature sensors, and a buzzer, relay and lamp. Across top are some of the components used to construct logic gates, including diodes, resistors, semiconductors and a hex gate. This module is from the Unilab range of the Philip Harris educational company.
Model release not required. Property release not available.