Depends on how much you want to spend, the FitPC's are really tiny but a little pricey. You can also get Mini ITX motherboards (if your robot has the room) for a lot less.

I had a video tutorial a few years ago about installing a Mini ITX in a robot - not sure where that video went...

I use an Acer W3 tablet... cheap and it works great...

or maybe something like this ...NetTop PC

Ah, Richard has a good point. I also have an Acer tablet and it is nice because of the touch screen.

If you end up installing a min-Itx without a screen, you can use Remote Desktop on any version of Windows. Also, TightVNC is a good option for free as well

I also have an Acer W3. Not in the robot yet, but runs ARC great (screen resolution isn't wonderful, but I build the projects on a different computer then publish to EZ-Cloud and download on the ACER).

There are a bunch of other small Windows 8.1 (not RT) tablets starting to appear on the market, and some like the W3 are appearing as factory refurbs on the various flash-sale sites (woot, yugster, dailysteals, meh, etc...) and eBay fairly regularly.

Alan

@DJ Oops, i thought i posted the Mini ITX link link in the video, thats what i was thinking. I thought of the Tablet option, but was looking to add additional cameras so thought a full pc might be best. Also thought of using the guts of a laptop, but no real gain, and just messy.

Not sure if it matters, but the Acer w3 has a built in camera (most tabs do)... Haven't tested it with ARC yet, however...

@thetechguru Had a plan to put a laptop on board, but don't need the screen on the rover, so thats what got me thinking of doing a setup like Jarvis. Just wasn't sure if there were any obvious reasons why i shouldn't go that route.

@Richard R Thinking of a Sony PS4 Camera once the PC version is released.