For Wyse ThinOS you can find the information under the "General Tab" of the "System Information" window, next to the "System Version" See Figure 1 below. This information, as well as the BIOS version, can also be obta ined from the first line of the "Event Log" tab as shown on Figure 2.
To turn on the Dell Venue 7 or Venue 8 tablet, just press and release the power button found on the top right of the device. The tablet is designed to be used vertically with the webcam window at the top. After pressing the power button, wait several seconds for the "Intel Inside" logo to appear.