This is excellent for devices that don't have hardware trackpads or trackballs.

这对于那些没有触摸板或者轨迹球等硬件的设备来说，简直棒级了。

youdao

Pointing devices include mice, trackballs, joysticks, light pens, digitizing tablets, and so on.

指示装置包括鼠标、跟踪球、操纵杆、光笔、数字化书写板等等。

youdao

Some types include digitizing tables, joysticks, trackballs, the mouse, touch panels, and light pens.

如下各种类型的设备：数字化仪、操纵杆、跟踪球、鼠标器、触板、光笔等。

youdao

Laptops were gaining popularity, but they featured trackballs that got grimy and were easily lost.

FORBES: The 200 Best Small Companies

The Swiss firm Logitech(13, LOGI) is a small but leading company in PC peripherals like mice, trackballs, keyboards, Web cams, headsets and network music systems--with particular clout in cordless devices.

FORBES: Media Mayhem

Even small changes like RIM's shift to optical trackpads instead of trackballs in its new devices should improve profit margins by decreasing warranty costs, UBS analyst Phillip Huang said in an August note.

FORBES: Earnings Preview