The all-in-one systems can be used as displays for Windows machines, but Acer is billing them as primarily Android devices. The 27-inch TA272 ($1,100) and 21.5-inch DA223 touchscreen all-in-ones come with the last-but-one version of Android, aka Jelly Bean, are powered by quad-core Nvidia Tegra and Qualcomm Snapdragon 600 processors, respectively, have the usual grab bag of USB and HDMI ports, and are Windows 8–certified.