Management of the National Polytechnic University of Armenia, the teaching staff of the university, employees and students express their sorrow on the death of Marat Muradyan, PhD in technical sciences, associate professor at the chair of Microelectronics and Biomedical Devices and we express our condolences to his family, relatives and friends. Marat Muradyan was born on April 2, 1935. In 1957, he graduated from Yerevan K.Marx Polytechnic Institute. M. Muradyan was appointed to a number of responsible positions. He worked as a leading engineer at Yerevan branch of Moscow “Signal” scientific and production association, at construction bureau “Signal” of “Hayaviacomplex” production association and at scientific and production association of Microelectronics. From 1988 onwards M.Muradyan delivered lectures at Yerevan Polytechnic Institute. In 1997, he defended his PhD thesis and was chosen as the head of the chair of Microelectronics and Biomedical Devices. He was also the dean of the faculty of Cybernetics. Besides his teaching activities, he also conducted scientific researches. The device (MM-1) Microprocessor small-scale electrocardiogram is famous both in Armenia and beyond its borders. It is designated to assess heart function and urgent diagnosis of heart diseases in outpatient clinics, in emergency situations, as well as in all vehicles, at home, at a workplace and any other places.