Siemens (西门子) 公司为了使电脑操作更容易、更合乎人类自然行为,已发展出所谓“虚拟现实屏幕”。使用这种屏幕的电脑不需要监视器、键盘或鼠标。这种键盘其实只是一个屏幕,就象幻灯机使用的投影幕,任何墙面或平面随时可以利用。电脑操作人员只要借助投影机光源,以手指在投影幕上的键盘点取,利用小型摄影机登录屏幕上的指令,后方的电脑即可执行电脑指令。 Siemens has developed so-called “virtual reality screens” to make computer operations easier and more natural for human behavior. Computers using this type of screen do not require a monitor, keyboard or mouse. This keyboard is actually just a screen, like the projection screen projector, any wall or plane ready to use. As long as the computer operator with the projector light source, with your finger on the projection screen on the keyboard, use the small camera login screen instructions, the rear of the computer can execute computer commands.