27-inch iMac can be a monitor for Apple computers

According to the results of independent testing, it became known that the new iMac computers with 27-inch only compatible with devices equipped with the DisplayPort video output, to which they can act as a LCD. As for working with devices with video output VGA, DVI and HDMI, it is out of the question. For compatibility with their 27-inch monoblock need a special adapter, what does not yet exist. Attempts to use commercially available adapters have not led to positive results.

That is, as an external monitor for devices with DisplayPort interface 27-inch iMac is suitable, but not much else. At the same time all the latest Apple computers (eg, Mac Mini) are equipped with Mini DisplayPort connector, and through him can broadcast a signal to display any input from VGA, DVI, HDMI and DisplayPort, sufficient to use adapter. But to the 27-inch iMac can not connect any computers with built-in DVI, or consoles with built-in HDMI (like Playstation 3, Xbox 360, Apple TV), or DVD- or Blu-Ray-Players. Although the iMac with the video signal can be easily displayed on other monitors or LCD TVs.

The reason that the 27-inch iMac can not accept DVI-signal is DisplayPort specifications. This standard is designed so that it can work both as internal and external systems videosignalnoy (Transmission signal from the video card to the integrated display and from the PC to the monitor respectively) - this imposes some restrictions. Systems that do not support DisplayPort, compounds used for the internal low-voltage differential signaling (LVDS), and external - DVI. None of the computers Apple does not have an internal input DVI, which would make it possible to use the built-in display as a monitor for an external PC. That is, the conventional adapter, but the adapter connectors are different, but passed directly to video, in this case does not help. You need a special device, which does not exist yet.