Electronic data processing-computer, has super video compact disc and blue ray disk drives integrated into computer, and super video compact disc and high-density optical disc read by beryllium audio multi-head laser medium

摘要

The computer has a super video compact disc (SVCD) and Blue ray(RTM: High-density optical disc) disk drives integrated into the computer. A SVCD and a blue ray disc are read by a beryllium audio multi-head laser medium. A fixed plate is applied by magnetic top layer etching of aluminum/nickel/cobalt. A plate controls and regulates current and voltage. Semiconductor elements e.g. transistor or thyristor, are connected with a 3-layered PNP or NPN gallium arsenide layers, and aluminum alloy removal is taken place in aluminum alloy blocks.