The collection contains several tens of digital and analog machines, their peripheries and/or other components that realize conversion and processing of signals on the basis of electric and electronic principles. Domestic products are represented mainly by the series of differential analyzers MEDA, differential analyzer ADAPP and components of electro- mechanical analyzer DIANA. Domestic digital devices are represented in the collection by relay calculation puncher of prof. Antonin Svoboda and components of automatic computers SAPO and EPOS designed by him.