Look at the system flowchart. It identifies several hardware components, including a computer, a disk drive, a data entry terminal, a printer, and a display terminal.

• 请看系统流程图，它指明了若干硬部件，其中包括一台计算机、一个磁盘驱动器、一个数据输入终端、一台打印机和一个显示终端等；