artificial intelligence AI Alan Kay Brian Silverman Dynabook Gary Stager Hal Abelson Logo MIT Margaret Minsky Media Lab OLPC One Laptop per Child Patrick Winston Seymour Papert W. Walter Grey Walter Bender bic Book Industry Communication::J Society & social sciences::JN Education bic Book Industry Communication::J Society & social sciences::JN Education::JNA Philosophy & theory of education bic Book Industry Communication::J Society & social sciences::JN Education::JNV Educational equipment & technology, computer-aided learning (CAL) computer science scratch 3D ultrasound imaging AlexNet CNN Deep Neural Networks ECG characteristic waveforms ECG signal EMG EMG signal