Naru-Science Software (Freelancer)
To develop and manufacture electric devices
I came from Tokyo and now live in Fujimi-city in Saitama prefecture.
I will shortly be 77.
Graduated from the College of Electrical Engineering, Shibaura Institute of Technology.
I received an unofficial job offer, but was later given an official rejection due to a severe economic situation (oil crisis of 1973-74; first oil shock).
Engineer in an amateur radio communication company.
Engineer in a weather satellite-related company
Freelancer of Naru-Science Software
Photography, amateur radio communicator, etc.
I have experienced good old days in the field of electronics. I and my family have had a curiosity about electric devices. I dissected an old radio in the primary school day. This was a beginning. I listened to a radio program and was interested in overseas broadcasting, Morse code signals, and vacuum tubes. Then, the semiconductors era came. I went through all the transitions.
When I just graduated from the university, micro-computers appeared. Shortly after that, micro-computer boards fascinated people. Subsequently, micro-computers came in the market and various types of them were manufactured and marketed by big manufactures. But, in Japan, PC9801 of NEC dominated the market for a long period. At this time, a computer called PC-AT of IBM was a world standard machine. The concept and architecture of this machine were open to the public, so that many compatible machines became commercially available. I believe that current computers are based on this machine.
Operation software has been changed from PC-DOS → CP/M → MS-DOS → WINSOWS → WINDOWS10. The programming language has also changed from the machine language → assembler → BASIC to various new languages.
Nowadays, the internet and AI have emerged. However, I want to treasure good old matters.