Computer maker Lenovo is launching today a number of new desktop and laptop computers based on the newest Intel and Advanced Micro Devices microprocessors. The designs have a lot of variety to them and would be unrecognizable from just a few years ago.

The highlights include a touchscreen desktop and a laptop geared for high-definition video.

The touchscreen desktop is the $999 A700 all-in-one computer (right) that uses Surface Acoustic Wave (SAW) touch screen technology, used in medical applications, for more responsive touch feedback than other touch screens.

Then there’s the $249 IdeaCentre Q150. Featuring a quirky design, it’s an ultra-thin “nettop PC,” or a cross between a smartphone and a netbook. The Q150 is 0.82 inches wide and 6.7 inches high. With an (optional) Nvidia Ion graphics chip, the device can be used to play back high-definition video.

Lenovo is releasing new laptops, desktops, all-in-one computers (which combine a computer and a monitor in a single package) and netbooks. The laptops include the IdeaPad Z series multimedia laptops ($649 and up) and IdeaPad U series ultra-portables ($699 and up), which weigh as little as 2.9 pounds, sport 14-inch screens, and are less than an inch thick.

I suppose that Lenovo knows what it’s doing with these kinds of different designs. Lenovo launched its worldwide idea brand PCs three years ago, and now it is selling them in 85 countries. And the company says its consumer PC business grew 89 percent in the past year.