Hewlett-Packard has taken the wraps off its Slate 21 Pro all-in-one desktop at CES 2014 in Las Vegas. But instead of choosing Windows 8.1 or even ChromeOS for the desktop's software, the company has opted for Android.

"Chrome doesn't allow for a lot of customisation and you don't have the freedom to manage them," said Pavana Polineni, senior product marketing manger at HP, in a statement to ZDnet. The desktop is aimed at small businesses, and that it could be useful as a kiosk or in verticals such as hospitality and travel, he said.

The 21.5-inch touchscreen desktop, capable of a 1920x1080 resolution, will ship to customers on 6 March for $399 (£245). It features a quad-core Nvidia Tegra 4 processor, 16GB of storage, 2GB of RAM, Bluetooth 4.0, front-facing web cam, and Wi-Fi.

The Slate 21 Pro's business oriented nature factored in HP's decision to go Android. The company says: "Using restricted profiles that are part of the security enhancements for Android, employees can further protect business data."

The move by HP to launch the Android all-in-one follows a similar move by Lenovo hours earlier, with a 19.5-inch solution that can fold up into a tablet-like build thanks to a flexible stand and three hours of battery life.

The Slate 21 Pro is HP's second Android all-in-one, following the Slate 21 launched over the summer and aimed at consumers rather than business. Using the flexibility of the open source software, HP tweaked the Android source code so apps display in both portrait and landscape mode.

Would you purchase an Android all-in-one over Windows?