硬件发展路程 RISC: Reduced instruction set computer Early 1980s RISC-based E ngineering- workstation oday Network of PC 199:1970s RISC-based airframe or Minicomputer Hard Ware Developing Engineering- Workstations, 小型机 And early 1980s Mainframe Micro-processor Computers aI d microcomputer IBM-PC