Program for using an IBM PC to read quadrature encoders through the parallel port (requires bi-directional port) and display position data on-screen.

计划使用IBM的PC阅读正交编码器通过并行端口（需要双向端口）和显示位置数据在屏幕上。

youdao

I supply the various models side trip, round pipe pixel, pixels have been widely used in traffic lights countdown, induced outdoor screen, directional signs above.

我公司供应各种型号方行、圆形像素管，像素管广泛应用在交通灯倒计时、室外诱导屏、指示标志上面。

youdao

Directional button - Move cursor, change selected options in menus, Character Creation and navigate Progress screen and Training area.

导航键——移动光标、菜单移动、角色创建、成长及训练栏的导航。

youdao

Around the front is a small LCD screen, four-directional navigation control with central button and two more, marked play and menu.

ENGADGET: Zoom Q2HD Handy Video Recorder lets you stream and record on the move, we go hands-on

It features a 7-inch capacitive screen, 2 shoulder buttons, 4 face buttons and a directional pad.

FORBES: [Updated] The ARCHOS GamePad: 7" Android ICS tablet with a built-in controller

Scaling the Apple Maps app to this screen size would be a bit more challenging, as you can see here from the size of the directional text.

FORBES: What If An iWatch Replaced Most Of The iPhone's Functions?