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随着我国信息化水平的不断提高,计算机外设类输出设备在信息系统中的地位越发重要,覆盖多种重要行业,包括党政军重要部门。打印机虽然只是连接在计算机主机以外的外设设备之一,但由于其具有独立数据处理能力,能够和主机的交互进行数据传输,并具备一定的数据存储功能,已成为计算机系统中非常重要的组成部分,甚至可以影响整个计算机系统的运行。大家耳熟能详的例子就是海湾战争中,萨达姆的防空系统因为打印机内置的后门程序导致
With the continuous improvement of the informatization level in our country, the position of output devices of computer peripherals in the information system becomes more and more important, covering a variety of important industries, including important departments of the party, government and military. Although the printer is only connected to one of the peripheral devices other than the host computer, it has become a very important component of the computer system because of its independent data processing capability, data exchange with the host computer and certain data storage functions Part of the whole computer system can even affect the operation. The well-known example is that during the Gulf War, Saddam’s air defenses were due to the printer’s built-in backdoor program