http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Nguyên lý chuyển đổi analog <-> digital: Kỹ thuật điện tử số - Mạch logic, Kỹ thuật số ứng dụng TV digital, kỹ thuật ghép nối vi xử lý
electronic digital computers,microprocessors