Face Recognition Attendance System, AI Face Attendance is a biometric Access Control and Attendance system with the latest facial recognition engine. After locking screen, user have to touch the screen to active the machine, then do face recognition. If not touch the screen, even if the user stand in front of machine it not recognize face. NPU stands for Neural Processing Unit. It is a type of microprocessor that is specifically designed for artificial neural network (ANN) operations, such as deep learning and machine learning tasks. They can process large amounts of data in parallel, which enables faster processing compared to traditional CPUs.